Chemical Research in Chinese Universities ›› 2020, Vol. 36 ›› Issue (6): 1302-1309.doi: 10.1007/s40242-020-0208-x

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Polyfunctional Conjugated Microporous Polymers for Applications in Direct C-H Arylation of Unactivated Arenes and Aqueous Adsorption of Aromatic Amines

LUO Kexin1, SU Qing1, JU Pengyao1, LI Xiaodong1, LIU Ziqian1, SUN Xiaoman1, LI Guanghua2, WU Qiaolin1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2020-06-25 Revised:2020-07-25 Online:2020-12-01 Published:2020-07-29
  • Contact: SU Qing, WU Qiaolin E-mail:suqing@jlu.edu.cn;wuql@jlu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.51703076).

Abstract: Salen-porphyrin-based conjugated microporous polymers(CMPs) have been demonstrated to be an attractive material platform for predesigned structures and promising applications. Herein, a new salen-porphyrin-based conjugated microporous polymer(SP-CMP-L) was solvothermally prepared by porphyrin-forming condensation reaction of pyrrole and salen-dialdehyde derivative. The SP-CMP-L was characterized by spectroscopy technologies, and also exhibited excellent thermal and chemical stability. The porosity of SP-CMP-L was examined by N2 adsorption/desorption isotherms. The BET specific surface area of the CMP material was calculated to be 290.4 m2/g with the pore volume of 0.19 cm3/g. The microstructure property of the resulting material was further evaculated by scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The SP-CMP-L with salen and porphyrin multidentate coordination sites was proposed to serve as an initiator to promote the cross-coupling between aryl halides with unactivated arenes under base-mediated conditions. The transition-metal-free catalytic protocol provided high catalytic activity for direct C-H arylation reaction of unactivated arenes, and thus offered a convenient and efficient alternative for the construction biaryl scaffolds. In addition, the salen-porphyrin-based CMP material possessed remarkable adsorption capability for the removal of organic amines from water.

Key words: Conjugated microporous polymer, C-H arylation, Aqueous adsorption