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    31 December 2001, Volume 17 Issue S1
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    Articles
    Stripping of the Halogens:From Silylenes to Metal Silicides to Nanocarbons
    LIU Chao-Shiuan
    2001, 17(S1):  1-1. 
    Abstract ( )   PDF (27KB) ( )  
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    Stripping off the halogens from halides has been a trick commonly and repeatedly used by chemists of different disciplines to synthesize new molecules of a great variety of forms.

    Glycoscience and Traditional Chinese Medicine(TCM)
    HUI Yong-Zheng
    2001, 17(S1):  2-3. 
    Abstract ( )   PDF (55KB) ( )  
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    Glycoscience underwent a dramatic progress since last decade,the function of glycoconjugates in life process has been elucidated step by steps and brings Carbohydrate Drug being popular.

    Some Points in Future Trends in Analytical Chemistry
    WANG Er-Kang
    2001, 17(S1):  4-5. 
    Abstract ( )   PDF (81KB) ( )  
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    Analytical chemistry is a science of measurement and characterization.Analytical testing is the eyes for science and technology and also for the production.

    The Tribochemical Behaviors of Ordered System Ultrathin Films
    XUE Oun-Ji, ZHANG Ping-Yu
    2001, 17(S1):  6-6. 
    Abstract ( )   PDF (51KB) ( )  
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    Ordered molecular films,with the Langmuir-Blodgett(LB) film as one of the typical representatives,have been largely focused on as potential candidates for novel advanced lubricating materials.

    From Metal String Complexes to Metal Wires
    PENG Shie-Ming
    2001, 17(S1):  7-8. 
    Abstract ( )   PDF (69KB) ( )  
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    Our efforts to extend the metal number from dinuclear metal complexes to linear oligonuclear metal complexes with all-syn form of oligo-(α-pyridyl) amido ligands are successful.

    Optoelectronic Organic Materials-From Synthetic Point of View
    LUH Tien-Yau
    2001, 17(S1):  9-10. 
    Abstract ( )   PDF (74KB) ( )  
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    Most organic materials for optoelectronic applications are conjugaled organic system.The burgeoning synthetic methodologies using organometallic catalysts or reagents have provided a powerful arsenal to design and synthesize new conjugated organic materials.

    Synthetic Applications of Chiral Furanboronate
    CHAN Kin-Fai, WONG Henry N. C.
    2001, 17(S1):  11-11. 
    Abstract ( )   PDF (47KB) ( )  
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    We recently uncovered that consecutive reactions of chiral furfaral-boronate 1 with a lithium alkoxide and a nucleophile led to the formation of alcohols 2 with good diastereoselection in favor of S-configuration at the newly generated chiral carbon.

    Oxide-assisted Synthesis and Properties of Semiconductor Nanowires
    Lee S. T.
    2001, 17(S1):  12-12. 
    Abstract ( )   PDF (38KB) ( )  
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    We introduce a new synthetic approach,called oxide-assisted growth method,which can produce bulk-quantity synthesis of high-purity(no metal contamination) one-dimensional semiconductor nanomaterials.

    Industrialization of Highly Efficient Photoinitiators TPO and a series of products
    Yan Qing-jin, Zhao Wen-chao, Yin Ying-wu
    2001, 17(S1):  13-14. 
    Abstract ( )   PDF (62KB) ( )  
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    In UV curing technology,photoinitiators are very important materials.When photoinitiatorsare radiated,they generate radicals,which initiate monomer and prepolymer to occur radical polymerization.

    Industrial Development Opportunity & Trend of Chinese Medicine
    Wang Yi-Tao
    2001, 17(S1):  15-15. 
    Abstract ( )   PDF (25KB) ( )  
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    While having a great development opportunity,CM faces a great marketing competition when entering to WTO.

    Chemical Process Research and Development at DuPont Pharmaceuticals Company
    MA Philip
    2001, 17(S1):  16-16. 
    Abstract ( )   PDF (28KB) ( )  
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    The mission of the Chemical Process R&D Department at DuPont Pharmaceuticals Company is to supply drug substance in a timely fashion and to discover/develop a scalable,economical,environmentally friendly process for the commercial production of the bulk drug substance.

    Chemical Process R&D for Pharmaceutical Industry in the New Millennium,Challenges and Opportunities
    ZHANG Tony Yantao, BINGHAM Alphus
    2001, 17(S1):  17-17. 
    Abstract ( )   PDF (37KB) ( )  
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    The genomic revolution has offered scientists in the world with unprecedented number of targets and opportunities to eradicate human diseases.

    Practical Large Scale Syntheses of New Drug Candidates
    Hui-Yin Li
    2001, 17(S1):  18-18. 
    Abstract ( )   PDF (29KB) ( )  
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    This presentation will be focus on Practical large scale syntheses of lead compounds and drug candidates from three major therapeutic areas from DuPont Pharmaceuticals Research Laboratory.

    Design and Synthesis of Caspase Inhibitors
    BAI Xu
    2001, 17(S1):  19-19. 
    Abstract ( )   PDF (29KB) ( )  
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    Apoptosis(programmed cell death) is an evolutionarily conserved process of cell suicide.It requires specialized machinery which involving a family of proteases named caspases.

    Modified Heparin
    XIONG Jian, YE Jun, GUAN Jia-lun, LI Lin
    2001, 17(S1):  20-20. 
    Abstract ( )   PDF (41KB) ( )  
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    Heparin,the naturally occurring blood anticoagulating agent,is a sulphated polysaccharide.In addition to famous anticoagulation,It also has other important pharmacological actions,such as preventing thrombosis,immunological accommodation,smooth muscle hyperplasia,antivirus etc.

    The Research about Exploiture and Utilization on Fumaria
    ZHANG Ji, BAI Zhen-Fang, YANG Yong-Li, DONG Hong-Ju, YANG Dong-Mei
    2001, 17(S1):  21-21. 
    Abstract ( )   PDF (49KB) ( )  
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    Traditional medicine used in the area of Tibet has a long history and Fumaria species are the main elements in these traditional medicines.

    The Research and Exploiture about Thymus serpyllum L. of Wild Medical Plant
    YANG Yong-Li, ZHANG Ji, BAI Zhen-Fang, HUANG Ai-Lun, YAO Jian
    2001, 17(S1):  22-22. 
    Abstract ( )   PDF (42KB) ( )  
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    Thymus serpyllum L is a woody herb belonging to the genus Thymus in the family Labiata.,The plant parts are medicinal and have many efficacies,such as detoxification,sterilization,diminishing inflammation and so on.

    Medicine Exploiture and Utilization on Artemisia Sphaerocephala Kmsch of Wild Plant
    BAI Zhen-Fang, ZHANG Ji, YANG Yong-Li, DONG Hong-Ju, HUANG Ai-Lun
    2001, 17(S1):  23-23. 
    Abstract ( )   PDF (38KB) ( )  
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    We distilled axunge from aerial parts of the wild plant Artemisia sphaerocephala Kmsch by soaking and organic extraction,and then measured the concentrations of sub oleic acid in the aerial parts and seeds.

    Production of 7-ADCA,GCLE and Cephalosporin
    GUAN Zuo-Wu, MA Zhuang, LU Kuan-Ke, LI Lian-Tao, LIU Shu-Jing, WANG Wen-Zhong
    2001, 17(S1):  24-25. 
    Abstract ( )   PDF (66KB) ( )  
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    The production of 7-aininodeaceloxy cephalosporanic acid(7-ADCA),4'-nitrobenzyl-3-bromomethy 1-3-cephem-4-carboxylate(GCLE) and their analo-gues from penicillin G.K.is an important national project for the new drug development.In this project 7-ADC A is produced by oxidation,ring expansion and enzyme splitting reaction of penicillin G,K(Scheme 1).

    Total Synthesis of a Highly Potent Anticancer Natural Product OSW-1
    Zhen dong-Jin, Wen sheng-Yu
    2001, 17(S1):  26-27. 
    Abstract ( )   PDF (68KB) ( )  
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    OSW-1(1) and its four natural analogs(2-5) are five highly potent anticancer natural products that were recently isolated from the bulbs of Orniihogalum saundersiae,a perennial grown in southern Africa(Figure l).1

    Supramolecular Architecture of Enzyme-like Reagents(I)-Immobilizing Prosthetic Group of Peroxidase and Its Application
    MAO Lu-Yuan, LI Liu-Zhu, LI Zao-Ying, QING Yi-Min, LEE Hai-Cheng
    2001, 17(S1):  28-29. 
    Abstract ( )   PDF (92KB) ( )  
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    Metalloporphyrin has been widely used in the enzymatic method of analysis as a mimesis of peroxidase[1].It is interesting work to utilize functional polymer to not only serve as a carrier of biomimetic catalyst[2],but also as a biochemical reagent or mimic the spacial structure of enzyme.

    Supramolecular Tectonics for Enzyme-like Reagents Ⅱ-Mimic and Assay of the Enzyme Containing Fe(Ⅱ,Ⅲ)
    MAO Lu-Yuan, CAI Ru-Xiu, HUANG Bo, ZOU Guo-Lin, ZHOU Hui, GAO Cheng-Zhuo
    2001, 17(S1):  30-31. 
    Abstract ( )   PDF (158KB) ( )  
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    The enzyme-likes and bioactive species were closely related with the life phenomena and sensed as the reagent of bioassy1,2.In present works,the flow cytometry(FCM) and rapid-scanning stopped-flow(RSSF) spectroscopy combine with the stopped-flow difference UVA/is spectra,FT-IR and other methods of assay,being used to study the biomimetic reaction and enzyme mimic

    Syntheses Characterization of Chloro-cyclopentadienyltricarbonyl-molybdenum with β-Cyclodextrin Supramolecular
    ZHANG You-Ming, WEI Tai-Bao
    2001, 17(S1):  32-33. 
    Abstract ( )   PDF (106KB) ( )  
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    Organotransition metal complex have been extensively used as homogeneous catalysts in organic reactions and much effort has been paid to improve their activity and selectively.Cyclodextrins have been studied as a model of enzyme for selective catalysis.

    Studies on the Two New Steroids from Polygonum nepalense Meissn
    SHEN Tong, Wang Jin-Xian, ZHENG Xu-Dong, SHEN Xu-We
    2001, 17(S1):  34-35. 
    Abstract ( )   PDF (91KB) ( )  
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    Polygonum nepalense Meissn which has a strong effect on stopping bleeding,making blood circling and which also is a traditional Chinese folk drug for treating diarrhea,lung carcinoma,etc.(1,2).But few is known about its chemical constituents We have carried out a detailed chemical investigation and have isolated two new steroids.

    Three New Apianen lactones Compounds from Dioscorea Cirrhosa Lour
    ZHENG Shang-Zhen, GUO Zhen, SHEN Tong, ZHEN Xu-Dong
    2001, 17(S1):  36-37. 
    Abstract ( )   PDF (93KB) ( )  
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    Dioscorea Cirrhosa Laour which is a species of the Dioscorea,grows abundantly in southern and eastern China.Its roots are used in Chinese medicine as a remedy for various diseases,especially use for tumours and cancers.

    Studies on the amide compounds of Mirahilis. Jalajia.L
    SHEN Xu-Wei, Li Mao, Cai Rang, YANG Hong-Peng
    2001, 17(S1):  38-39. 
    Abstract ( )   PDF (78KB) ( )  
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    Mirabilis himalaica(Edgew.) Heimerl Var.Chinensis Heimerl belonging to the genus Mirabilis are used in Chinese medicine as a remedy for various diseases[1].Its chemical constituents,however,have not been reported so far we have carried out a detailed chemical investigatigation of the seeds and have isolated two new amides along with three known compounds.

    Two New Isoflavones from Caragana Microphylla Lam
    ZHENG Shang-Zhen, ZHENG Min-Yan, SHEN Tong, GAO Li-Ming
    2001, 17(S1):  40-41. 
    Abstract ( )   PDF (97KB) ( )  
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    Caragana Microphylla lam.is a traditional Chinese folk medicine for promoting blood circle,treating hypertension and also can be used for the treatment of rheumatoid diseases1,but little is known about its chemical constituents except for several flavones.

    Introduction and Application of Electrochemical Sensors Based on Screen-Printed Technology
    ZEN Jyh-Myng
    2001, 17(S1):  42-42. 
    Abstract ( )   PDF (31KB) ( )  
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    We report here the development of chemical sensors based on screen-printed technology in our research group to solve major analytical problems in environmental and clinical aspects. I he purpose of the research is aimed at the enhancement of selectivity and sensitivity for analysis and monitoring of pollutants and analytes using novel chemically modified screen-printed electrodes.

    A Novel Electrochemical Method for Enhancing the Conductivity of Polyaniline Solid Matrices in Pre-Formed Films
    HAN Chien-Chung, HONG Shih-Ping
    2001, 17(S1):  43-43. 
    Abstract ( )   PDF (33KB) ( )  
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    A fast,simple and environmentally friendly new electrochemical method capable of enhancing the conductivity of a preformed polyaniline film has been found.Utilizing this method of electrochemical forcing pre-treatment at a certain effective voltage,a polyaniline solid matrix can be made more conductive.

    Advanced Transmission Electron Microscopy Applications in Nano-Materials and Nano-Technology Developments
    KAI J. J., CHEN F. R.
    2001, 17(S1):  44-44. 
    Abstract ( )   PDF (30KB) ( )  
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    Nano-technology development is nowadays a very hot topics in many research fields.Nano-materials are the foundations for developing this new technology.

    Preparation and Electrochemistry of Hydrous Ruthenium Oxide/Active Carbon Electrode materials for Supercapacitor
    Zhang Jian-rong, Jiang De-chen, Chen Bin, Zhu Jun-jie, Jiang Li-ping, Fang Hui-qun
    2001, 17(S1):  45-46. 
    Abstract ( )   PDF (83KB) ( )  
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    In this paper,we reported a new method to directly prepare the amorphous hydrous ruthenium oxide/active carbon powders,The relationship between the specific capacitance and ruthenium content in powders was studied in detail.

    Electron Transfer Chain Catalysis
    LIU Ling-Kang
    2001, 17(S1):  47-48. 
    Abstract ( )   PDF (81KB) ( )  
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    Electron-transfer chain(ETC) catalysis belongs to the family of chain reactions where the electron is the catalyst.I he ETC mechanism could be initiated by chemical activation,electrochemistry,or photolysis.

    Electrothermal Performances of Poly(Vinylidiene Fluoride)/Fluorine Rubber Conductive Composite Filled with Carbon Black
    LUO Yan-Ling
    2001, 17(S1):  49-50. 
    Abstract ( )   PDF (89KB) ( )  
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    The conductive polymer composites and their corresponding resistors with PTC(positive temperature coefficient) characteristic can be manufactured by mixing conductive carbon blacks with poly(vinylidiene fluoride) matrix.

    Field Emission From Ordered Nano-array Structures Based on Porous Aluminum Oxide Templates
    WANG Cheng-Wei, LI Hu-Lin
    2001, 17(S1):  51-52. 
    Abstract ( )   PDF (82KB) ( )  
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    This thesis reports my research work of fabricating nanostructures by using nanoporous anodic aluminum oxide(AAO) templates and their field emission properties in the past few years.

    Fabrication and Optical and Electrical Properties of Poly(2,5-di-n-butoxyphenylene) Nanowire Arrays
    YU Bo-Zhang, LI Hu-Lin
    2001, 17(S1):  53-54. 
    Abstract ( )   PDF (92KB) ( )  
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    Regular patterned arrays of nanomaterials have been widely fabricated and studied for their benefits in construction of novel type of optical,electron and magnetic device1-2,these kinds of devices center on the inorganic materials.

    Nanometer Polymer Latex and Its Application in Waterborne Coating
    PENG Yu-Xing, ZHENG Zhao-Hui, DING Xiao-Bin, ZHANG Wen-Chuan, YE Zhong-Hu
    2001, 17(S1):  55-55. 
    Abstract ( )   PDF (70KB) ( )  
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    The nanometer materials have been attracting an increasing attention due to the wide applications of this kind of materials in the information technology,national defense,biotechnology,etc.

    Highly Bright White Organic Light-Emitting Diode
    KOC. W., TAO Y. T.
    2001, 17(S1):  56-56. 
    Abstract ( )   PDF (28KB) ( )  
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    A highly bright white organic light-emilting diode(OLED) was realized by using a highly bright blue emitting layer,1,7-diphenyl-4-biphenyl-3,5-dimethyl-1,7-dihydrodipyrazolo[3,4-b;4',3'-e]pyridine(PAP-Ph),together with a 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran(DCM)-doped Alq[tris(8-hydroxyquinolinato) aluminum(Ⅲ)]layer to provide Hie blue,red and green emission for color mixing.

    On the study of the Metal-complex Dye Polyurethane Ionomer
    WANG Cheng-Li, ZHANG Zhu-Jun, CHAO Ding-Yang
    2001, 17(S1):  57-57. 
    Abstract ( )   PDF (56KB) ( )  
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    The reaction of toluene diisocyanate with polyester,dimethylol propionic acid,metal-complex dye and other additives to form the structure of metal-complcx dye polyurethane ionomer molecule has been proven by FT-IR spectra.In aqueous solution,the surface tension of mctal-complex dye polyurethane ionomer molecule is seen to slightly increase with increasing conccntrtion of metal-complcx dye and neopentyl glycol,respectively.

    Electrocatalytic Organic-Inorganic Hybrid Films and Their Applications in Chemical Sensors and Biosensors
    LI Xiao-Yuan, WANG Bao-Xing, YAO Gang, YANG Wen-jun, CAI Li-Rong, NIU Guo-Xing
    2001, 17(S1):  58-58. 
    Abstract ( )   PDF (33KB) ( )  
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    In this report,we will present the organic-inorganic hybrid molecular films prepared in our group and their applications in chemical sensors and biosensors.

    Advanced Polymeric Materials for High-tech Innovations
    TANG Ben-Zhong
    2001, 17(S1):  59-59. 
    Abstract ( )   PDF (58KB) ( )  
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    High technology is advancing our society and modernizing our life and advanced materials play an important role in the technological innovations.My research group has been working on the development of advanced polymeric materials and in this talk I will report our recent work on the creation of new conjugated polymers with novel molecular structures and unique materials properties.

    Zirconium Compound with Boundless Prospects
    LUO Fang-Cheng, ZHENG Jing-Yi, LV Wen-Guang, CHEN Zhong-Xi, WU Feng-Feng
    2001, 17(S1):  60-60. 
    Abstract ( )   PDF (62KB) ( )  
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    Zirconium compound has a wide-ranging use in the field of high and new technology.It is published in 2000'CHINA HIGH AND NEW TECHNOLOGY PRODUCT CATALOGUE,CHINA HIGH and NEW TECHNOLOGY PRODUCT EXPORT CATALOGUE,and INTERNATIONAL KEY AND URGING DEVELOPMENT CATALOGUE OF PROPERTY,COMMODITY AND TECHNOLNGY.

    Processability and APPlication of Metallocene Linear Low Density Polyethylene
    ZHAO Zhen-Xing
    2001, 17(S1):  61-61. 
    Abstract ( )   PDF (53KB) ( )  
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    Due to having a kind of active site in metallocene catalyst, the rate of polymerization and insertion of comonomer are very uniform.

    Study on Dynamic Vulcanized EPDM/PP Thermoplastic Elastomer
    YANG Shi-Yuan
    2001, 17(S1):  62-62. 
    Abstract ( )   PDF (37KB) ( )  
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    Based upon the THE,HAAK RHEOCORD 90 and Wx-ray observation,a study was made on the structure and property of ethylene-propylene-ethlidene norborene(EPDM)/polyprolene(PP) blending systems,and the experimental results were fully explained.

    Study on Adhesive Resin of Aluminum-Plastic Pipes
    ZHOU Jian-Song
    2001, 17(S1):  63-63. 
    Abstract ( )   PDF (34KB) ( )  
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    Polyolefin was chemically improved during extrusion by reactive extruding technology,and on its main chain was grafted a polar monomer,thus a stronger chemical bond was formed between the polyolefin and polar materials,which can enhanced the adhesive power on the interface of the two polymers.

    Preparation of Impact and Weather Resistant Copolymer
    LIANG Tao
    2001, 17(S1):  64-64. 
    Abstract ( )   PDF (57KB) ( )  
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    Synthesis method of the resin is that crosslinked polybutyl acrylate latex is used as base latex.Styrene(St) and acrylonitrile(AN) are grafted onto polybutyl acrylate latex particle and turn into core-shell copolymer.

    Progress in Bimodal Polyethylene Produced by Metallocene Catalyst
    FENG Yu-Tao
    2001, 17(S1):  65-65. 
    Abstract ( )   PDF (45KB) ( )  
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    The external new ways,kinds and recant advances of bimodal Polyethylene produced by metallocene catalyst were reviewed.For example,U.S.Pat.No 4939217 discloses an olefin polymerization supported catalyst comprising at least two different metallocenes each having different olefin polymerization termination rate constants in the presence of hydrogen.

    Polymer Blends Modified Asphalt
    WANG Yun-Pu, LI Yu-Feng, GAO Xiao-Hui, WANG Rong-Min
    2001, 17(S1):  66-66. 
    Abstract ( )   PDF (51KB) ( )  
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    Asphalt is an important low-cost thermo-plastic material which is widely used for construction,in particular as road-paving.Therefore it is exposed to a wide range of load and weather conditions.

    Preparation of PAA/AM/MMT Hybrid by Intercalation Polymerization
    WANG Yun-Pu, HAO Jin-Qing, XIONG Vu-Bin, CHEN Na-Li, ZHA Rui-Tao
    2001, 17(S1):  67-67. 
    Abstract ( )   PDF (41KB) ( )  
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    Over the last few years,Montmorillonitc(MMT) was widely used as a special inorganic material for preparing Polymer/MMT nanocompsites.MMT is a clay mineral consisting of stacked silicate sheets whose thickness is about 10Å.

    Preparation and Property of the Water Absorbent Hybrid Resin
    WANG Yun-Pu, HAO Jin-Oing, ZHA Ruj-Tao, CHEN Na-Li, XIONG Yu-Bin
    2001, 17(S1):  68-68. 
    Abstract ( )   PDF (46KB) ( )  
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    Water absorption material has been attracted much more attention for its wide use in soil and water conservation,agriculture,etc.But this material will actually apply in agriculture,soil and water conservation only when it is cheap enough.

    Coating Paper with the Fluorescence Assistant of Ternary Complexes of CMC/Eu/TTA
    YE Jun, XIONG Jian, YU Tie-ming, WU Hong, XIE Guo-hui
    2001, 17(S1):  69-69. 
    Abstract ( )   PDF (45KB) ( )  
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    Carboxymethyl cellulose(CMC),one of the derivatives of cellulose,are mainly used as thickeners,dispersants,adhesives,extenders and films because of their water solubility and gel-forming properties.Especially,because it presents more and more excellent properties on the making paper technology,the great of paper engineers attach importance to it.

    Studies on the Synthesis and Fluorescence Properties of Dendritic Polyamides
    LEI Zi-Qiang, HAN Qiao-Rong, YANG Zhi-Wang, WANG Yun-Pu
    2001, 17(S1):  70-70. 
    Abstract ( )   PDF (52KB) ( )  
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    Dendrimers are well-defined macromolecules exhibiting a tree-like structure[1,2].Dendrimer chemistry is now a rapidly expanding field for basic and applicative reasons.

    Preparation and Characterization of Ce02 Nanoparticles
    GUAN Fei, GUAN Tao, YANG Wu
    2001, 17(S1):  71-71. 
    Abstract ( )   PDF (51KB) ( )  
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    he preparation and characterization of cerium oxide nano-powder has attracted much attention over the past few years due to their great potential in many fields.It is commonly used in glass,ceramics,fluorescence powder and catalyst etc.[1].

    Synthesis of Copoly(MAn-VAc-St) and Study of Effect of Dispersion as the Dispersant
    WANG Dong-Mei
    2001, 17(S1):  72-72. 
    Abstract ( )   PDF (53KB) ( )  
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    The aqueous solution copolymerization of maleic anhydride(MAn),vinyl acetate(VAc) and styrene(St) was carried out by using redox system as initiator.Aqueous MAn solution PH should be adjusted and controlled between 6 and 7 by slow addition of proper amount of aqueous NaOH solution.

    Nucleobase Derived Monolayers of Conjugated Polymers for Nucleotide Recognition
    CHEN Jie, BERMAN Amir
    2001, 17(S1):  73-73. 
    Abstract ( )   PDF (38KB) ( )  
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    Polymerizable amphiphilic diacetylene containing monomers,(10,12 pentacosadinoyic acid,PDA) with a cytosine derived headgroup were synthesized and spread on a Langmuir film balance.

    Study on Reaction of Tolylene Diisocyanate with Polyolefine Polyols
    Zhang Fa-Ai
    2001, 17(S1):  74-74. 
    Abstract ( )   PDF (58KB) ( )  
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    Polyuretliane(PU) has been used widely.It is produced by polyisocyanate with polyol.There are many poly isocyanates and polyols.

    Study on the Formation Mechanism of Nanotube Ti02
    JIN Zhen-Sheng, ZHANG Shun-Li, GUO Xin-Yong, ZHANG Jing-Wei, ZHOU Jing-Fang, ZHANG Zhi-Jun
    2001, 17(S1):  75-76. 
    Abstract ( )   PDF (96KB) ( )  
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    Nanotube Ti02 is a novel kind of nanomaterials.In 1998,Kasuga et al first found that the nanotube Ti02 can be obtained through the treatment of the powered polycrystalline Ti02 in concentrated NaOH solution1.

    Nanostructures Based on Porous Aluminum Oxide Templates:Fabrication, Properties and Applications
    LI Hu-Lin
    2001, 17(S1):  77-78. 
    Abstract ( )   PDF (85KB) ( )  
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    Using the template method to fabricate nanostructures is an entirely new approach for fabricating nanostructures based on self-organization that developed since the middle 1990s,which means that nanostructures can be made directly in the openings of the template under an environment of liquid or vapor.

    Catalytic Disposal of Cooking Fume Discharged from the Restaurant
    WANG Xiang-Yu, YE Chang-Ming, LIU Guang-Yu, LI Xiao-Fei, WANG Lei
    2001, 17(S1):  79-80. 
    Abstract ( )   PDF (82KB) ( )  
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    The cooking oil fume pollution have been becoming a serious problem.1Though several methods on disposal technology of the fume have been developed at home and abroad,such as filtration process,electrostatic process and wet process,practical and effective technology is still needed.2

    Effect of the Extender on Form and Structure of the Thermoplastic Starch
    MA Zu-Fu, WANG Qing-Ning, YU Shu-Rong, SONG Yan-Qing, YE Qi-Zhi, WANG Ji-Hong
    2001, 17(S1):  81-82. 
    Abstract ( )   PDF (102KB) ( )  
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    The thermoplastic starch is a complete biodegradable plastic materials,in the full-starch plastic the thermoplastic starch attained amount to 90% or higher.For the improve on machine properties,general added a extender of 5-10% according to the process method and/or claim of the use properties,the process and use properties of full-starch depend on a kind of the extender to a certainly extent1.

    Synthesis and Application of Zeolite-encapsulated Nickel Schiff-base Complex
    FENG Hui-Xia, WANG Rong-Min, WANG Yun-Pu
    2001, 17(S1):  83-84. 
    Abstract ( )   PDF (76KB) ( )  
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    Transition-metal complex-catalyzed oxidation of organic substrates with molecular oxygen is gaining importance as a viable alternative to the environmentally hazardous metal-oxide-based reagents.The complexes have received much attention recently due to the potential application of these complexes as oxidation catalysts for the oxidation of alkene,enolizable,aldehydes and other organic substrates.

    Synthesis of Transparent Impact Styrene-Butadiene Block Copolymer
    Gong Guang-bi
    2001, 17(S1):  85-86. 
    Abstract ( )   PDF (94KB) ( )  
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    Transparent impact styrene-butadiene block copolymer possesses both high transparency and impact resistance and has excellent comprehensive properties prior to other transparent resins.

    Study on the Synthesis Process of Dibenzylidene Sorbitol and Derivative
    LI Ji-Chun
    2001, 17(S1):  87-88. 
    Abstract ( )   PDF (95KB) ( )  
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    Dibenzylidene Sorbitol(DBS) and Di(P-methylbenzylidene) Sorbitol(P-Me-DBS) derivatives,used as crystallinity Polyolefine kind resin transparency nucleating agent,can reduce to a large extent the produces haze,improve its transparency,validly resin's rigidity,heat resistant temperature and modulus of bending.Its good transparency and glossiness are as good as transparent material.

    H-Bonded Liquid Crystalline Polymer Network Materials
    LIN Hong-Cheu, HENDRiANO Jemmy
    2001, 17(S1):  89-90. 
    Abstract ( )   PDF (82KB) ( )  
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    Side-chain copolymers,poly(mOBA-co-mStilb)s,composed of proton acceptors(stilbazoles) and proton donors(benzoic acids) connected to polyacrylate backbone with different methylene spacer lengths(m=6 and 10) were prepared in different donor/acceptor molar ratios.

    Study on the Property of β-CDEP Supported by Methylated Polystyrene for Inclusion and Adsorption of Bilirubin
    MAO Lu-Yuan, SHEN Han-Xi, ZHUANG Yun-Feng, YANG Yong, FAN Yun-Ge
    2001, 17(S1):  91-92. 
    Abstract ( )   PDF (104KB) ( )  
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    How to utilize functional material to eliminate uncombined bilirubin is a key problem in the research of artificial hepatic supporter[l].There have been reports on the utilization of cyclodextrin and its polymer as biomedical materials[2,3].

    Highly Ordered Zinc Oxide Nanotiibuies Synthesized within the Anodic Aluminum Oxide Template
    WANG Zhen, LI Hu-Lin
    2001, 17(S1):  93-94. 
    Abstract ( )   PDF (125KB) ( )  
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    Zinc oxide(ZnO) is a wide-band-gap semiconductor,winch has a broad range of applications,c.g.,in pigment,rubber additives,gas sensors,varistors and transducers1.It has recently been demonstrated that nanophase zinc oxide can be used in photocells of the Gätzcl type2,which results in improved current generation efficiency.

    Preparation of Carbon Nanotubes by the Catalysis of Polymer Metal Complex on Porous Al203 Matrix
    SHI Yan-Li, ZHANG Xiao-Gang, LI Hu-Lin
    2001, 17(S1):  95-96. 
    Abstract ( )   PDF (102KB) ( )  
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    At present,synthesis of carbon nanotubes(CNTs) is normally conducted on a vapor-to-solid interface at ca 500-3500℃ via various vapor phase methods,such as are discharge,laser ablation,catalytic pyrolysis and chemical vapor deposition,etc.1,2

    Photoisomerization of the Graft Copolymer of Starch and Azo-dye
    FU Zheng-Sheng, YANG Ai-Mei, LIANG Wei-Dong, WANG Zhi-Guo
    2001, 17(S1):  97-98. 
    Abstract ( )   PDF (82KB) ( )  
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    Optical data storage materials are mainly based on organic molecules.To be suited for as an optical data storage material,molecules have to be photochromatic,they must be capable of being reversibly switched between two spectroscopically distinct forms by use of light[1].

    AC Electrochemical Deposition of CdS Nanowire Arrays
    QIN Dong-Huan, LI Hu-Lin
    2001, 17(S1):  99-100. 
    Abstract ( )   PDF (83KB) ( )  
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    Since the successful growth of carbon nanotubes,one-dimensional materials have been a focused research field both because of their fundamental importance and the wide-ranging potential applications in nano devices.Many approaches are used to fabricate nanowires,such as crystal growth.

    Preparation and Characterization of Nanosized LiCo02 by Sol-Gel Process
    ZHOU Ying-Ke, SHEN Cheng-Min, LI Hu-Lin
    2001, 17(S1):  101-102. 
    Abstract ( )   PDF (129KB) ( )  
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    In the intense search for high-energy density cathode materials for use in lithium-ion rechargeable battery technology,LiCoO2 has become the first,and one of the most promising,for commercial applications1.Sol-gel chemistry has recently evolved as a powerful approach for preparing inorganic materials such as glasses and ceramics2.

    Synthesis of Resins with Chiral Salen Complexes
    WANG Yun-Pu, ZHA Rui-Tao, HAO Jin-Qing, CHENG Na-Li, XIONG Yu-Bing, LI Yu-Feng
    2001, 17(S1):  103-104. 
    Abstract ( )   PDF (65KB) ( )  
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    The enormous growth in the use of polymer resin supports in solid phase combinatorial synthesis,and related methodologies,has re-stimulated interest in the area of polymer-supported transition metal complex catalyst.The recently developed chiral salen-based for the enantioselective ring opening of meso epoxides and kinetic resolution of terminal epoxides are appealing candidates for immobilization on solid support.

    The Facility and Process Technics of Polyethylene Rotational Molding
    LI Bai-Shun
    2001, 17(S1):  105-106. 
    Abstract ( )   PDF (76KB) ( )  
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    Rotational molding is the process by which hollow plastic parts are formed.It mainly processes the product which Injection molding and Blow molding can not process medium-sized,large-sized and super large-sized plastic parts.

    Preparation of Hydrogenated Nitrile Rubber
    LIU Zhi-Cai, CHEN Cai-Yun, HAN Zhe-Fen, LI Xiao-Peng
    2001, 17(S1):  107-108. 
    Abstract ( )   PDF (65KB) ( )  
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    Hydrogenated nitrile rubber is an oil and solvent resistant rubber and particularly give more resistant to heat,ozone,light.It is generally prepared from nitrile rubber by selective hydrogenation using a suitable catalyst system.

    Assembly of Oligosaccharide Libraries
    YE Xin-Shan, WONG Chi-Huey
    2001, 17(S1):  109-109. 
    Abstract ( )   PDF (50KB) ( )  
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    Carbohydrates contain an evolutionary potential of information content several orders of magnitude higher in a short sequence than any other biological oligomer due to their monomers capable of more than one linkage position,anomerity,and branching.

    SAR by MS
    HOFSTADLER Steven, LOWERY Kristin, DRADER Jared, DING Yi-li, JEFFERSON Elizabeth, SWAYZE Eric, GRIFFEY Rich, HE Yun
    2001, 17(S1):  110-110. 
    Abstract ( )   PDF (88KB) ( )  
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    RNAs have recently emerged as an exciting new target for small molecule therapeutics.Conventional HTS discovery strategics measuring disruption of RNA-protein interactions have proven unsuccessful.

    Unique Cyclin-Dependent Kinase(CDK) Inhibitors at the ATP-site
    LI Lin, CHONG Wesley K M., DUVADIE Rohit K, CHU Shao Song, YANG Y. Michelle, NONOMIYA Jim, TUCKER Kadthleen D., KNIGHTON Daniel R., FERRE RoseAnn, LUNDGREN Karen, ESCOBAR Jorge, MINNICK Sharon price, HUBER Andrea, KOUDRIAKOVA T atiana, ARRUDA Jeannie, SISSON Wes, AUST Robert M., VERKHIVKER Gennady M., SCHAFFER Lana, ROSE Peter w, and LEWIS Cristina T.
    2001, 17(S1):  111-111. 
    Abstract ( )   PDF (31KB) ( )  
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    Control of the cell cycle could be applicable in new approaches for cancer chemotherapy.The cyclin-dependent kinases(CDK's) and their corresponding complexes with cyclins are regulatory enzymes for which we have discovered a novel small molecule series of inhibitors,with potencies in the nanomolar range and good selectivity for the CDK's versus other kinases.

    An Efficacious Synthetic Strategy for cis-Clerodane Diterpenoids
    LIU Hsing-Jang, HO Yun-Lung, WU Jen-Dar, SHIA Kak-Shan
    2001, 17(S1):  112-112. 
    Abstract ( )   PDF (45KB) ( )  
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    Clerodane diterpenoids are widely distributed in nature and constitute one of the largest and,yet,still rapidly growing family of secondary metabolites.Of the relatively few clerodanes tested for biological activity,many were found to possess interesting antifeedant and medicinal properties and are potentially useful as insecticidal,antitumour,antifungal,antibiotic,anti-peptic ulcer,and psychotropic agents.

    Metal Chemical Vapor Deposition:Design and Synthesis of New Source Reagents for Osmium Thin Films
    YU Huan-Li, CHOU Tsung-Yi, CHI Yun
    2001, 17(S1):  113-113. 
    Abstract ( )   PDF (44KB) ( )  
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    Treatment of β-diketone ligands,such as hfacH(hexafluoroacelylacetone) or tmhdH(2,2-dimethyl-3,5-heptanedione),with binary metal carbonyls Ru3(CO)12 or Os3(CO)12 in a stainless steel autoclave at elevated temperature afforded the corresponding mononuclear Ru or Os complexes 1,2 and 3 in good yields.

    Novel Metal Gallophosphates Containing Nano-Sized Channels
    WANG Sue-Lein
    2001, 17(S1):  114-114. 
    Abstract ( )   PDF (54KB) ( )  
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    Substitution of the first-raw transition metal(IM) ions for Al31 in the frameworks of aluminum phosphates is of particular interest for the enhancement of catalytic activity and the design of novel catalysts.The location and environment of the TM ion site is of considerable importance for understanding the catalytic and adsorptive properties of molecular sieves.

    Synthesis of Dioxa-cage Compounds as a New Probe for the Stereochemistry of the Bisadducts of p-Benzoquinone with 1,3-Cyclodienes
    WU Hsien-Jen, TSAO Ching-Bo, TSAI Ting-Yueh
    2001, 17(S1):  116-116. 
    Abstract ( )   PDF (40KB) ( )  
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    π-Facial stereoselectivety in Diels-alder reactions and their synthetic applications have attracted considerable attention in recent years.In the Diels-Alder reaction of the cyclopentadiene-quinone cycloadduct 1 with cycloalkadiene,four bisadducts with different stereochemistry could potentially result endo-anti-endo 2,endo-anii-exo 3,endo-syn-exo 4,and endosyn-etido 5.

    The Synthetic Strategy toward of ACE-Inhibitors
    CHANG Ching-Yao, YANG Teng-Kuei
    2001, 17(S1):  117-117. 
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    Angiotensin Ⅱ is an important octapeptide which is responsible for the increase in blood pressure in three major mechanisms.It acts as a hormone to attack the receptor on the blood vessels,which cause strong vasoconstriction.

    Microwave-Accelerated Organic Reactions
    LU Ta-Jung
    2001, 17(S1):  118-118. 
    Abstract ( )   PDF (29KB) ( )  
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    The use of microwave technology in accelerating organic reactions has received intense attention leading to immense growth recently.Accordingly,we have been interested in improving the efficacy of organic processes by microwave irradiation.

    Enantioselective Synthesis of Protease Inhibitors and Anti-HIV Agents
    WANG Zhe
    2001, 17(S1):  119-119. 
    Abstract ( )   PDF (40KB) ( )  
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    A highly enantio- and diastereoselective Ireland-Claisen rearrangement of chiral C3-(acyloxy)-vinyl silanes for the synthesis of anti-disubstituted succinic acid,an important intermediate for matrix metalloprolease inhibitors,has been developed(enantio- and anti/syn selectivities up to 95% and 38/1).

    High Speed Development and Synthesis of Novel Small Molecule Libraries
    XIAO Xiao-Yi
    2001, 17(S1):  120-120. 
    Abstract ( )   PDF (33KB) ( )  
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    Combinatorial chemistry has produced libraries of millions of compounds in the last decade.Screening of those compounds,unfortunately,has not yet yielded as many new drug candidates as initially expected.

    Library Design Guided by In-house Developed Computer Tools
    LI Ge
    2001, 17(S1):  121-121. 
    Abstract ( )   PDF (31KB) ( )  
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    In recent years,combinatorial library synthesis for drug discovery begins to migrate from library synthesis solely dictated by chemistry availability to design and synthesis of libraries with more drug-like properties.

    Synthesis of Methylaluminoxane
    ZHU Bo-Chao
    2001, 17(S1):  122-122. 
    Abstract ( )   PDF (48KB) ( )  
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    Methylaluminoxane(MAO) is the most important cocatalyst of metallocene catalysts.In order to raise the hydrolysis reactions repeatability and the yield,we used the pretreated Al2(S04)318H20 to synthesize MAO.

    Catalytic Properties of Polymer-bound Imine Copper(Ⅱ) Complex
    WANG Yun-Pu, LI Yu-Feng, GAO Xiao-Hui, ZHAO Yan-Wu, WANG Rong-Min
    2001, 17(S1):  123-123. 
    Abstract ( )   PDF (49KB) ( )  
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    As heterogeneous catalyst,polymer metal complexes is stable in air,low corrosive,low toxic,easy to separate and reclaim,1,2which superior than organic metal low-molecular complexes,so be paid close attention since 1960' and apply in industry gradually.There are many reports in polymer metal catalyst which is used in oxidation and hydrogenation.3

    Immobilization of Homogeneous Catalysis on Phosphinated MCM-41
    SHYU Shin-Guang, CHENG Sheau-Wen, TZOU Der-Lii
    2001, 17(S1):  124-124. 
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    Homogeneous catalysis Rh(PPh3)3Cl immobilized on MCM-41 modified with(OEt)3Si(CH2)3PPh2 results in a stable hydrogenation catalyst with turn over frequency(TOF) three times higher than that of RH(PPh3)3C1 in the hydrogenation of cyclohexene.

    Synthesis of CMS under ultrasonic irradiation
    XIONG Jian, YE Jun, WANG Wen-jing
    2001, 17(S1):  125-125. 
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    Starch is a granular mixture of nomopolymers of a-D-glucopyranosyl units.These polymer molecules are hydrogen bonded and aligned radially in the granule.

    The Cross-linking reaction of HEC
    XIONG jian, YE Jun, XUAN Zhi-yong, XIE Guo-hui
    2001, 17(S1):  126-126. 
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    Cellulose ethers are important components for light industries such as food and papermaking industries.Its modification research is a frontline science to widen their uses and realize their industrialization.

    Carboxymethylation of Cellulose by Microwave irradiation
    YE Jun, XIONG Jian, SU Ying-zhi, XIAO Ping
    2001, 17(S1):  127-127. 
    Abstract ( )   PDF (51KB) ( )  
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    Cellulose may be readily converted into ethers involving primary and secondary alcohol groups in each monomer unit and the glycosidic bonds.However,these reactions are rather more complicated than with simple substances,because the stereochemistry of the cellulose molecule is such that the vast majority of its hydroxyl groups form intra-chain hydrogen bonds or inter-chain hydrogen bonds with contiguous molecules.

    Novel Chiral Auxiliaries of BIAZOLs
    CHEN Arh-Hwang, YUAN Shou-Bin, CHIU Shu-Ching
    2001, 17(S1):  128-128. 
    Abstract ( )   PDF (28KB) ( )  
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    Asymmetric catalysis is one of the most challenging and formidable endeavor in organic synthesis.The development of chiral auxiliaries is a key in the asymmetric catalysis.

    Schiff Base Dinuclear Complex Catalyst for Oxidation of Cyclohexene with Molecular Oxygen
    SHAO Dong-Xu, WANG Rong-Min, CAI Yong-Fu, WANG Yun-Pu, XIE Xin, HE Nai-Pu, XIA Chun-Gu
    2001, 17(S1):  129-129. 
    Abstract ( )   PDF (57KB) ( )  
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    In the past decades,the oxidation of hydrocarbons by transition metal complexes has been studied extensively.The current progress of the research on synthetic quasiporphyrin catalysts has led to the development of several systems that are able to reproduce the heme-enzyme mediated oxygenation and oxidation reactions[1].

    Synthesis of OMeTAD and TAD
    WU Xiao-Ming, CHENG Xiao-Chuan, CAO Xiao-Ping, PAN Xin-Fu
    2001, 17(S1):  130-130. 
    Abstract ( )   PDF (38KB) ( )  
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    Hole transport materials are currently researching hot topic and are paid more and more attention to by a lot of scientists.In 1998,?Nature? reports an efficient hole transport material OMeTAD(2,2',7,7'-tedtrakis(N,N-di-p-methoxyphenyl-amine)9,9,-spirobifluorene).

    Diels-Alder Reactions of 6-Hydroxy-2H-pyran-3(6H)-ones with Cyclopentadiene and Its Application for the Synthesis of New Skeletal Oxa-Cage Compounds
    WU Hsien-Jen, LIU Hui-Chang, CHENG Lui
    2001, 17(S1):  131-131. 
    Abstract ( )   PDF (42KB) ( )  
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    The 2(5H)-furanone and 3(6H)-pyranone structures are frequently found in natural products,which have a broad range of biological activities.In addition,furanones and pyranones have served as versatile intermediates in the synthesis of a variety of products.1

    Synthesis,Chemistry,and Applications of Heterocyclic Cage Compounds(V)
    WU Hsien-Jen, LIN Hui-Chang, WANG Zhong-Yi, WU Chung-Yi
    2001, 17(S1):  132-132. 
    Abstract ( )   PDF (39KB) ( )  
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    The synthesis and chemistry of polycyclic of cage compounds have attracted considerable attention in recent years.The vast majority of the work reported in this area has dealt with carbocylic cage compounds.

    Catalytic Asymmetric Coupling of 2-Naphthols by Chiral Tridentate Oxovanadium(IV) Complexes
    HON Sang-Wen, LI Chun-Hsin, KUO Jen-Huang, BARHATE N. B., LIU Yi-Hung, WANG Yu, CHEN Chien-Tien
    2001, 17(S1):  133-133. 
    Abstract ( )   PDF (31KB) ( )  
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    A series of chiral oxovanadium(IV) complexes derived from tridentate N-3,5-substituted-,N-3,4-benzo- and N-5,6-benzo-salicylidene-α-amino acids can serve as efficient catalysts for the enantioselective oxidative couplings of various 3-,6-,and 7- substituted 2-naphthols under 02.

    The Practical Asymmetric Syntheses of Key Chiral Intermediates of Chiral Drug from Four-Carbon Chiral Pool
    MI Ai-Qiao, LIN Wen-Qin, HE Zhe, JIN Yi, JIANG Yao-Zhong
    2001, 17(S1):  134-135. 
    Abstract ( )   PDF (65KB) ( )  
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    (S)-or(R)-2-Amino-4-phenylbutyric acid and(S)- or(R)-2-hydroxy-4-phenylbutyric acid and their ethyl esters are key chiral intermediates for the preparation of angiotensin converting enzyme inhibitors(ACEI) and other chiral drugs.

    Asymmetric Catalytic Reactions Catalyzed by Chiral Titanium Complexes
    FENG Xiao-Ming
    2001, 17(S1):  136-137. 
    Abstract ( )   PDF (72KB) ( )  
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    Chiral titanium complexes is very importance catalyst to asymmetric catalytic reactions.A series of catalytic systems based on titanium-chiral ligands complexes has been reported.

    Convenient Syntheses of Some C4 Chiral Building Blocks Starting From(S)-Malic Acid
    WU Tian-Jun, YU Xian-Yong, ZHENG Xiao, HUANG Pei-Qiang
    2001, 17(S1):  138-139. 
    Abstract ( )   PDF (72KB) ( )  
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    In the field of chiral technology,the synthesis of chiral intermediates and chiral building blocks occupies an important position.Chiral building blocks bearing double and/or multiple functionalities is particularly useful for the synthesis of chiral pharmaceuticals and chiral agrochemicals.

    Highly Catalytic Enantioselective Addition of Diethyl Zinc to Aldehydes and Chalcone in the Presence of Chiral Ligands
    WANG Rui, DA Chao-Shan, LIU Da-Xue, YANG Xiao-Wu, XIN Zhuo-Qun, DONG Shou-Liang, ShEN Jan-Heng, SU Wu, WANG Heng-Shan, WANG Quan, ZHANG Li-Chen, CHAN Albert S. C.
    2001, 17(S1):  140-141. 
    Abstract ( )   PDF (102KB) ( )  
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    Catalytic asymmetric carbon-carbon bond formation is one of the most important reactions and have attracted much attention to develop more efficient enantioselective C-C formation methods in organic synthesis.

    Preparation of Optically Active Compounds by Combination of Chemical and Enzymatic Methods
    FANG Jim-Min
    2001, 17(S1):  142-143. 
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    Many natural products contain γ-lactone moieties.For example,β-methyl-γ-butyl-γ-lactones(quercus lactones) are gradients of aged whiskey,and β-methyl-γ-(3-methyl-2-butenyl)-γ-lacione(eldanolide) is a pheromone of the African sugarcane borer.

    Fluorescence Quenching Effects of Donor-Acceptor Pairs Through A Rigid Spacer
    CHOW Tahsin J, CHEN Hong-Chuan
    2001, 17(S1):  144-145. 
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    Heptacyclo[6.6.0.02.6.03,13.04,11,05,9,010,14]tetradecane is a cage-shaped molecule of both high symmetry(D2d) and high rigidity.In our previous reports,it has been used as an unique spacer group for electron transfer processes between a donor(D) and an acceptor(A) substituent.

    Novel Coordination Polymers Constructed from 4,4'-Bipyridine and Phosphate
    Kwang-Hwa Lii
    2001, 17(S1):  146-147. 
    Abstract ( )   PDF (107KB) ( )  
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    The synthesis of open-framework metal phosphates has been a subject of intense research owing to their interesting structural chemistry and potential applications as ion-exchangers,catalysts and adsorbents.A large number of these materials are synthesized in the presence of organic amines as structure-directing agents.

    C2-Symmetric Dibenzosuberane-based Helicenes as Potential Chirochromic Optical Switches and Amorphous Hosts in OLED Applications
    CHEN Chien-Tien, CHOU Y-Chen, KAO Jin-Y, LI Tai-Wei, LIU Chia-Cheng, LI Ying-Chieh, CHANG I-Hsin, LIN Jin-Sheng, YEN Chia-Wen
    2001, 17(S1):  148-149. 
    Abstract ( )   PDF (63KB) ( )  
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    Three C2-symmetric(l0R,l1R)-diethyl substituted dibenzosuberane(DBS)-based helicenes with varying steric and conjugation demands of their bottom fragments were synthesized.Only the helicene-7a with the bottom part derived from tetralone was found photo-switchable in reasonable time scale.

    A Novel Method for the Resolution of(±)-1,1'-Bi-2-naphthol and Synthesis of 2,2'-Unsyminetrically Substituted Chiral Binaphthyls
    WANG Yong, CHEN An-Oi, YE Jian-Jun, RUN Yuan-Ping, ZHOU Zhao-Hui
    2001, 17(S1):  152-153. 
    Abstract ( )   PDF (88KB) ( )  
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    Enantiomerically pure 1,1'-bi-2-naphthol(BINOL)1 and its derivatives are important chiral ligands and auxiliaries for a number of asymmetric transformations1 such as aldol condensations,alkylations,Diels-Alder reactions,Michael additions,epoxidations,etc.

    Synthesis of Indole Derivatives from 2-Keto Glycoside
    LIU Hong-Min, XU Wen, LI Feng, LIU Zhen-Zhong
    2001, 17(S1):  154-155. 
    Abstract ( )   PDF (79KB) ( )  
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    2-Oxo derivatives of glycosides,called 2-keto glycosides or glycoside 2-uloses,are biologically important in carbohydrate metabolism and are very useful in synthesis of branched-chain sugars and amino sugars.

    Studies on the Epoxidation of Styrene with Hydrogen Peroxide Catalyzed by MCM-41 Supported Co(Ⅱ) Phenanthroline Complex
    LOU Jian-Fang, WANG Rong-Min, CAI Yong-Fu, WANG Yun-Pu, SONG Peng-Fei, ZHANG Zhen-Lin, XIA Chun-Gu
    2001, 17(S1):  156-157. 
    Abstract ( )   PDF (91KB) ( )  
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    The epoxide is a kind of versatile intermediate for manufacture of a wide variety of fine chemicals.The goal of modem efficient catalytic methods is to produce desired compounds with high yield,selectivity,low cost,safety,operational simplicity and more importantly environmentally benign manner.

    Catalytic Oxidation of Ethylbenzene by the Dendrtic PAMAMSA-Mn(Ⅱ) Complexes
    LEI Zi-Qiang, YANG Zhi-Wang, HAN Qiao-Rong, GUO Zhen, WANG Rong-Min, WANG Yun-Pu
    2001, 17(S1):  158-159. 
    Abstract ( )   PDF (83KB) ( )  
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    As a newly developed polymer,the dendrimer has interested many chemistry workers.Its highly asymmetric molecular structure and the high density of peripheral function give it much of the substantial use in many fields[1].

    Catalytic Properties of Dendrtic PAMAMSA-Zinc Complexes in the Oxidation of Cyclohexene
    LEI Zi-Qiang, YANG Zhi-Wang, HAN Qiao-Rong, KANG Qiao-Xiang, WANG Rong-Min, WANG Yun-Pu
    2001, 17(S1):  160-161. 
    Abstract ( )   PDF (76KB) ( )  
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    Denrdrimer has many special properties different from ordinary polymers[1].In the last few years,much of the research work concerning this kind of compound focuses on its synthesis and physical properties As to its catalytic properties,several of the reports have been published[2].

    Synthesis of(R)-3-Methylpyrrolidine Alkaloids Using(S)-Malic Acid as a Chiral Pool
    ZHENG Xiao, RUAN Yuan-Ping, HUANG Pei-Qiang, LEE Albert W, M., CHAN Wing-Hong
    2001, 17(S1):  162-163. 
    Abstract ( )   PDF (71KB) ( )  
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    Previous work in our laboratory was around the development of chiral 2-pyrrolidinone synthon A.Malimides 1 and 2,which can be easily prepared from(S)-malic acid,have been shown to be versatile chiral synthetic intermediates.

    Preparation and Characterization of Chitosan Hydrochloride
    FUNG Hai-Xia, YUShu-Rong, WANG Qing-Ning, SONG Yan-Qing, WANG Yun-Pu, WANG Rong-Min
    2001, 17(S1):  164-165. 
    Abstract ( )   PDF (97KB) ( )  
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    Chitin1 is a biodegradable and nontoxic polysaccharide widely spread among marine and terrestrial invertebrates and fungi.It is usually obtained from waste materials of the sea food-processing industry,mainly shells of crab,shrimp,prawn and krill.

    Study on the Supramolecular Inclusion Complex of β-Cyclodextrin/Lappaconitine
    Liao Kai-jun, Yan Xiao-hua, Zhao Dong-yu, Ma Xue-yi
    2001, 17(S1):  166-167. 
    Abstract ( )   PDF (83KB) ( )  
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    Lappaconitine(Lap) is a diterpenoid akaliamide,naturally occuning in roots and rhizomes of Aconitum and delphinium.Lap reveals bradycardic,hypotensive,antinocieptive activity.However,its application is restrained owing to its poor water solubility,toxicity and side effects on humans.

    First Efficient Synthesis of 7-Epi-14-isocyano-isodauc-5-ene from α-(-)-Santonin
    LI De-Run, XIA Wu-Jiong, SHI Lei, Tu Yong-Qiang
    2001, 17(S1):  168-169. 
    Abstract ( )   PDF (74KB) ( )  
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    The natural products containing isodaucane skeleton 1 belonged to a rare kind of sesqiterpenes.1 In recent years,investigation on this kind sesquiterpenes have been attracting the interest of chemists,because some isodaucane sesquiterpenes isolated from the medical plants have been shown important bioactivities.2

    A New Convergent Approach to Unsymmetrically Branched Polyether Dendrimers
    CAO Xiao-ping, WANG Feng, WANG Xiao-long, ZHOU Zhao-li
    2001, 17(S1):  170-171. 
    Abstract ( )   PDF (98KB) ( )  
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    Dendrimers are perfect monodisperse macromolecules with a regular and highly branched three-dimensional architeclure.The combination of discrete numbers of functionality in one molecular and high densities of active groups,typical for dendritic molecules,has attracted a lot of attention in the fields of medicinal chemistry(e.g.in drug delivery system),host-guest chemistry and catalysis chemistry[1].

    Stereoselective Synthesis of Substituted 1,3,5,7,9-Decapentaenes
    CAO Xiao-ping, WANG Xiao-long, WANG Feng, YANG Yu-ying, Liu Dong
    2001, 17(S1):  172-173. 
    Abstract ( )   PDF (102KB) ( )  
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    Conjugated 1,3,5,7,9-decapentaene is an important structural unit in various of natural products such as phytoene,aurenin,vitamin A1 and A2[1].It has been shown that conjugated polyenes are potentially useful compounds for non-linear optical materials.

    Application of Microwave Irradiation to Rapid Organic Inclusion Complex
    Yan Xiao-hua, Han Yan-dong, Liao Kai-jun, Zhao Dong-yu, Ma Xue-yi
    2001, 17(S1):  174-175. 
    Abstract ( )   PDF (71KB) ( )  
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    Microwave irradiation has been used in chemical laboratories for moisture analysis and wet asking procedures of biological and geological materials for a number of years [1].More recently the microwave irradiation also widely used for rapid organic synthesis [2].

    Design,Synthesis,Anticancer Pharmacology of Actinomycin D Analogues:5,5'-MeSer2-ActD and 5,5,-MeAla2-ActD
    NI Jing-Man, YANG Xiao-Wu, JIA Zheng-Ping, PAN Xing-Fu, WANG Rui
    2001, 17(S1):  176-177. 
    Abstract ( )   PDF (83KB) ( )  
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    Actinomycin D(ActD,Figure 1.),containing a planar phenoxazonc ring and two cyclic pentapeptides,is one of the most intensely studied anticancer drugs and currently used to treat highly malignant tumors,such as Wilms' tumor and gestational choriocarcinoma.Although ActD possesses high antitumor activities,its clinical usefulness is limited by its extreme cytotoxicity.

    Synthesis of Chiral Metal Complexes of Unsymmetrical Schiff Bases
    SONG Bo, TANG Ning, TAN Min-Yu, HUANG Guo-Sheng, CHAN Albert S. C.
    2001, 17(S1):  178-179. 
    Abstract ( )   PDF (79KB) ( )  
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    Recently,in asymmetric catalyst research the great developments of chiral Salen complexes have been made,hut the report on unsymmetrical schiff bases is deficient.The unsymmetrical schiff bases complexes are an effective system m catalytically selective Olefin-epoxidations1.

    Synthesis of Some New Long-chain Salen Catalysts
    WU Jin-Cai, TANG Ning, SUN Yang, ZHANG Ling, Song Bo, TAN Min-Yu, Albert S. C. CHAN
    2001, 17(S1):  180-181. 
    Abstract ( )   PDF (78KB) ( )  
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    In the research of enantioselective epoxidation of unfunctionalized alkenes using Salen compounds,Katasuki1 and Jacobsen2 pointed out that 3 and 3' groups of Salen were very important to increase the e.e of the catalytic product.

    Adsorption of Proteins with Tannin Modified Chitosan Magnetic Particles
    CHANG Yue, SU Zhi-Xing, WANG Yun-Pu
    2001, 17(S1):  182-183. 
    Abstract ( )   PDF (81KB) ( )  
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    Magnetic polymer particles have been widely used in biochemistry and medicine in recent years[1-4],mainly due to their property of relatively rapid and easy separation,I here were many ways for preparation of magnetic particles[5-9].

    Cobalt-Catalyzed Vinylation of Organozinc Reagents with Aldehydes
    WANG Jin-Xian, FU Ying, HU Yu-Lai
    2001, 17(S1):  184-185. 
    Abstract ( )   PDF (101KB) ( )  
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    Transtion metal catalyzed vinylation of organic halides are known to be a very convenient method for forming carbon-carbon bonds at unsubstituted vinylic position.The versatility of stilbenes is well known because of its various biological active components,the variety of its reactions in organic syntheses,and its ability to function as a bonding partner for metals in complexes.

    Microwave Assisted Cross-Coupling Reaction of Sodium Tetraphenylborate with Aroyl Chlorides on Palladium-Doped KF/Al2O
    WANG Jin-Xian, YANG Yi-Hua, WEI Bang-Guo, HU Yu-Lai, FU Ying
    2001, 17(S1):  186-187. 
    Abstract ( )   PDF (113KB) ( )  
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    The palladium-catalyzed cross-coupling reaction of organoborate compounds with organic electrophiles is very attractive method for organic synthesis.These coupling reactions offer a powerful tool for the formation of carbon-carbon bonds 1In the past few years a number of methods have been devoloped which permit the use of organoboron compounds that are thermally stable and inert to water and oxygen.

    Nickel(Ⅱ) Catalyzed 1,4-Addition Reactions of Functionalized Orgnaozinc Reagents with Enones
    HUANG Dan-Feng, YANG Yi-Hua, WANG Jin-Xian, HU Yu-Lai
    2001, 17(S1):  188-189. 
    Abstract ( )   PDF (100KB) ( )  
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    Organozinc reagent is one of the earliest organometallic compounds prepared.Investigation of its application in organic synthesis had been completed before 1880.

    A Convenient Synthesis of Conjugated Acetylenic Ketones by Copper(Ⅰ)-Catalyzed under Microwave Irradiation
    WANG Jin-Xian, WEI Bang-Guo, ZHAO Lian-Biao, HU Yu-Lai, KANG Li-Qing
    2001, 17(S1):  190-191. 
    Abstract ( )   PDF (110KB) ( )  
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    Alkynyl ketones are useful precursors and intermediates in synthetic organic chemistry1 and has evoked considerable interest.A number of methods for the synthesis of conjugated acetylenic ketones involve the reaction a metal acetylide with an acyl chlorides or another carboxylic acid derivative have been developed2.

    Phase Transfer Catalyzed Synthesis of Thiosemicarbazide Derivatives of 2-ethoxybenzoic Acid
    WEI Tai-Bao, ZHANG You-Ming, WU Jia-Wei
    2001, 17(S1):  192-193. 
    Abstract ( )   PDF (64KB) ( )  
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    A series of l,4-disubstitued thiosemicarbazides and their related heterocyclic compounds have been found to possess important biological activities[1].Some thiosemicarbazides have been found to be useful as herbicides,insecticides and plant-growth regulators[1].

    An Efficient Synthesis of Polymethylene-bis-aroyl Thiourea Derivatives under the Condition of Phase Transfer Catalysis
    WEI Tai-Bao, ZHANG You-Ming, WU Jia-Wei
    2001, 17(S1):  194-195. 
    Abstract ( )   PDF (65KB) ( )  
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    A number of 1,3-disubstituted derivatives are associated with various types of biological activity[1].Some thioureas are useful as herbicides,insecticides and plant-growth regulators.

    Synthesis of l-Aroyl-4-(2-Chlorophenyloxyacetyl)-Thiosemicarbazides and Corresponding Semicarbazides
    LI Zheng, WANG Xi-Cun
    2001, 17(S1):  196-197. 
    Abstract ( )   PDF (99KB) ( )  
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    1,4-Diacyl thiosemicarbazides have attracted much attention in recent years because of their fungicidal1,bactericidal2 and tuberculostatic3 activities.Meanwhile,aryloxyacetic acid derivatives have also been used as herbicides and plant-growth regulators4-6.

    Microwave Assisted Synthesis of N-Aryl-N'-[5-(4-Chlorophenyl)-2-Furoyl]-Thioureas And Ureas
    WANG Xi-Cun, LI Zheng
    2001, 17(S1):  198-199. 
    Abstract ( )   PDF (97KB) ( )  
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    Substituted thioureas have attracted much attention due to their herbicidal1,antibacterial2,anti-HIV3 and plant-growth regulating4 activity.Meanwhile substituted ureas are not only used as medicines and agrochemicals because of their antiinflammatory5,analgesic5 and insectcidal6 activity,but also used as intermediates for the synthesis of many important heterocyclic compounds.

    Synthesis and Characterization of Ce-Containing MCM-41
    CHIEN Shu-Hua, CHEN Chun-Long
    2001, 17(S1):  200-201. 
    Abstract ( )   PDF (108KB) ( )  
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    The cerium-containing MCM-41(Ce-MCM-41) has been synthesized with size in the micrometer range by direct hydrothermal method.Transmission electron microscopy shows the regular hexagonal array of uniform channel characteristics of MCM-41.

    A Study of the Catalysts for the Complete Oxidation of Low Concentration Ethyl Acetate and n-Butyl Acetate
    DUAN Zhi-Ying, LI Rong, CHEN Jian-Jun, YIN Wan-Po, MA Jian-Tai
    2001, 17(S1):  202-203. 
    Abstract ( )   PDF (82KB) ( )  
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    In this work,we have synthesized mixed oxides catalysts supported on γ-A1203,using some base metals such as La、Sr、Ce、Ni、Cu,At the space velocity of 56,000h-1 and at some range of concentration,the complete conversion temperatures(≥98%) of Ethyl acetate and n-butyl acetate are 260℃ and 250℃ respectively.

    Perovskite-type Mixed Oxides Catalyst for Complete Oxidation of Acetone
    DUAN Zhi-Ying, LI Rong, CHEN Jian-Jun, YIN Wan-Po, PENG Xuan-Jia, MA Jian-Tai
    2001, 17(S1):  204-205. 
    Abstract ( )   PDF (82KB) ( )  
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    The catalytic oxidation of VOCs(volatile organic compounds) is an attractive subject in the field of environmental protection now.Furthermore,most countries have made out regulations[1] controlling the maximum content of VOCs in some places.

    Several Applications of NMR in Organic Chemistry Research
    CUI yu-xin, XU hao, LUI xue-hui
    2001, 17(S1):  206-206. 
    Abstract ( )   PDF (46KB) ( )  
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    Modem NMR techniques,especially 2D-NMR have presented their powerful application in organic chemistry.Not only in structural determination,mechanism investigation,but also in solution conformation study for natural products.

    Relation of Certain Infrared Bands to Starch Crystallinity
    XIONG Jian, YE Jun, WANG Wen-jing
    2001, 17(S1):  207-207. 
    Abstract ( )   PDF (52KB) ( )  
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    Starch is a homoglycan composed of but a single type of sugar unit.Nature has chosen the starch granule as an almost universal from for packaging and sturing carbohydrate in green plants.

    Analysis of Polysaccharides in Shii-Take from Guizhou
    MO Li-ping, XIONG Jian, YE Jun, LI Lin
    2001, 17(S1):  208-208. 
    Abstract ( )   PDF (42KB) ( )  
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    Polysaccharides,special those with physiological actions and nutrition,are widely used as an important resources for food,medicine industries,health etc.Herba Glossogynes Tenuifoliae(Shii-Take) is rich in polysaccharides with physiological actions and nutrition.

    The Effect of Different Extracting Agents on Extraction Rate of Polysaccharides in Shii-Takes from Guizhou
    MO Li-ping, XIONG Jian, YE Jun, GUAN Jia-lun, LI Lin
    2001, 17(S1):  209-209. 
    Abstract ( )   PDF (52KB) ( )  
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    Herba Glossogynes Tenuifoliae(Shii-Take) contains lots of bioactive components,such as equal amylose,mixed amylose,sugar albumen,albumen polysaccharide,protlin and so on,that all have effects of anticancer and restrain tumour.But the extraction rate by hot water and alkali solution is much low.

    Spectropho Stometric Determination of IO4- by Fading Reaction of Chlorophosphonazo-pN with Potassium Periodate
    LI Xin, YAN Yun-shou, QI Chun-he, LIU Xi-lin
    2001, 17(S1):  210-210. 
    Abstract ( )   PDF (35KB) ( )  
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    2-(4-chloro-2-pbosphonophenylazo)-7-(4-nitrophenylazo)-l,8-dihydroxy-3,6-napht-halenedisulfonic acid(Chlorophosphonazo-pN) has been proposed as a sensitive color reagent for the determination of melal ions by spectrophotometry,1,2 but the determination of IO4- by fading reaction of chlorophospho nazo-pN has not been reported.

    Spectrophotometric Method for the Determination of Oxidative Ions With Decoloring Reaction Using HCPCF
    KOU Zong-yan, NIU Ji-wei, WANG Shu-wen, GONG Xiao-ming, KOU Ming-ze
    2001, 17(S1):  211-211. 
    Abstract ( )   PDF (44KB) ( )  
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    HCPCF is a color reagent for the determination of vanadium,zinc and magnesium,etc.To the best of our knowledge,no work on the decoloring reaction for analytical use of HCPCF for the determination of oxidative anions has been report.

    Bond Characterization of the 3-D Framework Structure of the Copper(Ⅱ) Isonicotinic Acid Complex Formed by Hydrogen Bonding
    WEN Yuh-Sheng, WANG Yu
    2001, 17(S1):  212-212. 
    Abstract ( )   PDF (35KB) ( )  
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    The crystal of qudra-aquabis(isonicotinato-N) copper(Ⅱ),Cu[(NC5H4COO)]2·4H20 was synthesized via hydrothermal method.Single crystal X-ray analysis at 100K(Siemens SmartCCD) and 25K(Nonius KappaCCD) arc performed.

    Studies on the Fluorescence Properties of Chloromethyl Polystyrene Supported Fluorophore
    REN Hong-Xia, LEI Zi-Qiang, WANG Song-Bai, YANG Zhi-Wang, WANG Yun-Pu
    2001, 17(S1):  213-213. 
    Abstract ( )   PDF (46KB) ( )  
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    The basic materials used in making photoluminescence materials are all synthesized polymers at present,such as PVC.etc[1].Red and green LEDs are easy to be prepared,but the blue LED is difficult to be done.

    Study on Polarographic Absorption Wave of Soluble Porphyrin Copper Complex
    HE Yu-Feng, ZHANG Zhang, KANG Jing-Wan
    2001, 17(S1):  214-214. 
    Abstract ( )   PDF (51KB) ( )  
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    The porphyrins is a kind of sensitive color-producing reagent.However,its selectivity is low.If the porphyrin is used in polarographic analysis,the selectivity and sensitivity can be improved.

    Topological Analysis on Intermolecular Interaction of Two Ferromagnetic Organic Radical Compound
    LEE Jey-jau, WANG Yu
    2001, 17(S1):  215-215. 
    Abstract ( )   PDF (49KB) ( )  
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    Electron density studies of two organic radical species,para-nitronyl-4-benzylideneamino-2,2,6,6-tetramethylpiperidin-1-oxyl,1,and para-bromide-4-benzylideneamino-2,2,6,6-letramethylpiperidin-1-oxyl,2,have been carefully investigated by X-ray diffraction method at low temperature(125 K and 100 K).

    13C NMR Quantitative Study-Part 1:Relationships between the Conformation of Amino Acids,Peptide,Carboxylic Acids and Integration Intensity of 13C NMR
    TIAN Jin-Ping, YIN Ying-Wu
    2001, 17(S1):  216-217. 
    Abstract ( )   PDF (124KB) ( )  
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    In proton broad band decoupling 13C NMR,carbon atoms have different integration intensity because of NOE effects and their different relaxation time(T1),thus it makes a 13C NMR quantitative analyses very difficult.

    Resolution of the Chiral Drugs
    DENG Jin-Gen, ZHU Jin
    2001, 17(S1):  218-219. 
    Abstract ( )   PDF (74KB) ( )  
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    Chiral drugs are generally not permitted to be used in racemic form so that unintended side effects and unnecessary environmental hazards are avoided.Moreover,homochiral molecules are required immediately to progress key toxicological and clinical studies in the drug discovery.

    Construction and Ion Exchange Properties of Supramolecular Complexes with Organic Ligands and Metal Ions
    SUN Wei-Yin, FAN Jian
    2001, 17(S1):  220-221. 
    Abstract ( )   PDF (95KB) ( )  
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    Supramolecular architectures with specific topologies such as closed three-dimensional molecular cages present a large range of applications in material science,medicine and chemical technology1,2.In the past decades,a number of such frameworks,e.g.M6L4,M12L8 and M18L6,have been synthesized by assembly of organic ligands with transitional metal salts.3-5

    Chiral Separation by Capillary Zone Electrophoresis Used Cyclodextrins and Their Derivatives as Chiral Selector
    HOU Jing-Guo, LIU Hui-Ling, MAO Xue-Feng, WANG Zhu-Ming, DU Xin-Zhen, DENG Hua-Ling, GAO Jing-Zhang
    2001, 17(S1):  222-223. 
    Abstract ( )   PDF (83KB) ( )  
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    Capillary zone electrophoresis(CZE) is a very promising analytical technique for the optical isomer resolution of the compounds studied.The drawbacks of the techniques such as HPLC[1] were sophisticated stationary phases and/or the relatively high quantity of the chiral agent in the mobile phase,which do not exist in CZE.

    Quantitative High-Performance Liquid Chromatographic Determination of Neurotoxin β-ODAP and α-isomer in Grass Pea(Lathyrus sativus)
    XING Geng-Mei, YAN Ze-Yi, WANG Fei, CHEN Xiong, LI Zhi-Xiao
    2001, 17(S1):  224-225. 
    Abstract ( )   PDF (123KB) ( )  
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    Grass pea(Lathyrus sativus) is leguminous crop cultivated in India,Bangladesh and Ethiopia,where it is a major protein source for people in the lowest income groups[1].

    Structural Analysis of Polysaccharide from Cladonia furcatar and Its Activities
    CHEN Qian, LiN Xin, CAI Yu-Jun, LI Zhi-Xiao
    2001, 17(S1):  226-227. 
    Abstract ( )   PDF (107KB) ( )  
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    Cladonia furcatar is a member of the lichens genus Cladonia,Japanese scientific researchers[1] made a great achievement in selecting lichens as anticancer agent and polysaccharides are generally considered to be their main bioactive constituents.

    Studies on the Chemical Constituents and Bioactivities of Tripterygium Wilfordii
    Li Yuan-Chao
    2001, 17(S1):  228-229. 
    Abstract ( )   PDF (114KB) ( )  
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    Tripterygium wilfordii Hook(TW) is a medicinal plant distributed widely in southern china.This plant was recently found to possess aiti-inflammatory,antitumor and immunosuppressive activities.

    Cyclic Voltammetry And Linear Sweep Voltammetry Study Of Cyclic Tertiary Amines
    ZHAO Ping, TIAN Jin-Ping, YIN Ying-Wu
    2001, 17(S1):  230-231. 
    Abstract ( )   PDF (110KB) ( )  
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    Cyclic six membered α-aminonitrile have proved to be very versatile synthetic intermediates and have been widely used in the construction of a large number of indole alkaloids.In order to obtain some information about the mechanism of electrochemical synthcsis of α-aminonitrile.

    Fluorescence Studied of Dissociation Constant of Cyclodextrin With Phenol Derivatives
    ZHANG You-Ming, WEI Tai-Bao
    2001, 17(S1):  232-233. 
    Abstract ( )   PDF (83KB) ( )  
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    α-and β-cyclodextrins consisting of six and seven glucose residues respectively,have lipophilic cavities with different inner diameters.They form host-guest inclusion complexes with hydrophobic organic and organometallic guest molecules in aqueous solution.

    Preparation of Molecular Sieve Catalyst and Application in the Catalytic Oxidation Treatment of Waste Water
    WANG Rong-Min, XIE Xin, HE Yu-Feng, WANG Yun-Pu, HE Nai-Pu, ZHANG Zheng-Lin, SONG Peng-Fei, LIU Wen-Jun
    2001, 17(S1):  234-235. 
    Abstract ( )   PDF (71KB) ( )  
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    Citric acid is an important additive in foods,cosmetics,medicine and so on,but it discharges about 10 ton of factory effluent when 1 ton of citric acid is produced.The COD of the factory effluent is near 20000 mg/L.

    Photochromatic Behavior of the Graft Copolymer of Starch and Azo-dye
    FU Zheng-Sheng, YANG Ai-Mei, WANG Zhi-Guo, LIANG Wei-Dong
    2001, 17(S1):  236-237. 
    Abstract ( )   PDF (76KB) ( )  
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    Photoisomerization(trans-cis) of azoaromatic compounds has been investigated extensively using absorption spectroscopy since 1950s[1].By irradiation with light of wavelength λ1 or λ2,the geometric configuration of the azo bond in azobenzene based compounds can be reversibly switched from trails to cis.

    Determination of Lead by Electrochemistry
    HE Yu-Feng, ZHANG Zhang, MA Yong-Jun, KANG Jing-Wan
    2001, 17(S1):  238-239. 
    Abstract ( )   PDF (70KB) ( )  
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    Lead is one of the poisonous trace element for human body.It is important to find a way for measuring content of lead.Determination of lead by electrochemistry is one of a method[1].

    The Technology of Extracting from Waste Mycelia
    ZHANG Hong, WANG Yun-Pu, WANG Rong-Min
    2001, 17(S1):  240-241. 
    Abstract ( )   PDF (80KB) ( )  
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    Chitin is one of the most abundant natural resources,chitosan is deacetylated from chitin.As natural organisms,chitosan is easier to be decomposed with organisms and eatable.

    The Influence Factors of the BZ Oscillating Reaction
    LIU Xiu-Hui, GAO Jin-Zhang
    2001, 17(S1):  242-243. 
    Abstract ( )   PDF (101KB) ( )  
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    As a typical oscillating chemical reaction,studies of the Belousov-Zhabotinsky reaction have not only yielded important results lo provide insights to many kinetic and thermodynamic problems,but also provided suggestive models for a number of important biological processes.

    HPLC-an Effective Method of DNA Fragment Determination
    HOU Jine-Guo, HE Tian-Xi, MAO Xue-Feng, LIU Hui-Ling, DU Xin-Zheng, NA Peng-Jun, DENG Hua-Ling, GAO Jing-Zhang
    2001, 17(S1):  244-245. 
    Abstract ( )   PDF (96KB) ( )  
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    The role played by DNA in molecular biology is clearly recognized to be vital to life on this planet.8-oxo-7,8-dihydro-2 deoxyguanosine(=8-OHdG),is probably the most important product of "oxidative stress" in DNA.

    Photocatalytic Decolorization of Methylene Blue on the Nanosized Ti02-Polymer Composites
    SU Bi-tao, ZHENG Jian, ZHANG Li, XIAO Tai, PENG Xiao-xia, SU Zhi-xing
    2001, 17(S1):  246-247. 
    Abstract ( )   PDF (109KB) ( )  
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    Titanium dioxide semiconductor systems with excellent stability of photo-electric chemistry,no poison,cheap,and high separation efficiency of photogenerated charges,consequently,high photocatalytic activity,have been the subject of extensive investigation because of their promise in the photovoltaic[1] photocatalytic[2],and battery applications[3].

    Marine Natural Products as Lead Compound for New Drug Discovery
    JIANG Biao
    2001, 17(S1):  248-248. 
    Abstract ( )   PDF (41KB) ( )  
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    The study of natural product has long been motivated by a quest for some benefit to man,the discover.Recent years have witnessed growing attention to the isolation,identification and synthesis of the marine natural.

    Recent Advance in Light Stabilization
    CHIU Chris
    2001, 17(S1):  249-249. 
    Abstract ( )   PDF (36KB) ( )  
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    In order to protect polymers or coatings from the damage by sun light,scientists have created the UV Absorber to complete the task.The first commercialized UV absorber(UVA) is based on a benzophenone structure and was developed by American Cyanamid(UV 531),circa 1955;and is still the leading UVA for flexible PVC.

    Modern Techniques for TCM Extraction,Processing and Purification
    YANG Da-Jian, CHEN Shi-Lin, WONG Man-Sau, LI Yue-Ming
    2001, 17(S1):  250-250. 
    Abstract ( )   PDF (53KB) ( )  
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    As can be expected,textile,tourism and TCM industries will be the most benefited ones after China's joining of world trade organization.TCM industry possesses great market potential,but it had not been well recognized by international market.

    Developing a Practical Chiral Toolbox for Asymmetric Catalytic Reactions
    ZHANG Xu-Mu
    2001, 17(S1):  251-252. 
    Abstract ( )   PDF (79KB) ( )  
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    Chiral Quests Toolbox Approach:During the last several decades,chemists have made major progress in discovering man-made catalysts to perform challenging asymmetric transformations.

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