CRCU

Chemical Research in Chinese Universities ›› 2005, Vol. 21 ›› Issue (3): 326-333.

• Articles • Previous Articles     Next Articles

Catalytic Oxidative Conversion from Naphthol to 2-Hydroxy-1, 4-naphthoquinone over Iron Porphyrin Catalysts by Molecular Oxygen in an Alkaline 2-Propanol Solution

YANG Ke-er1, TONG Shan-ling1, YAN Yan1, KANG En-hua2, XIAO Feng-shou2, LI Qing3, CHANG Xin3, FANG Chi-guang3   

  1. 1. Department of Chemistry, Institute of Adranced Materials, Shantou University, Shantou 515063, China P. R.;
    2. College of Chemistry, Jilin University, Changchun 130023, China P. R.;
    3. The Sanitation Center of Inspection & Test of Jilin Province, Changchun 130012, P. R. China
  • Received:2004-07-19 Online:2005-05-24 Published:2011-08-06

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Abstract: In an alkaline 2-propanol solution with 5,10,15,20-tetra(4-methoxyl phenyl) porphyrin iron chloride(TOMPPFeCl) as a catalyst and oxygen as a cheap green oxidant, 2-naphthol was conversed to 2-hydroxy-1,4-naphthoquinone(HNQ) with a yield of 62.17% and a selectivity of 100%, and the conversion number of TMOPPFeCl catalyst was 8.32/min. The catalytic oxidation products were characterized by means of UV-Vis, IR, GC-MS, 1H NMR and melting point determination. In this catalytic oxidation, the catalytic activity of TMOPPFeCl was researched in detail and the reacting conditions were optimized. A possible reaction mechanism is summarized based on in situ EPR determination.

Key words: Catalytic oxidation, Naphthol, 2-Hydroxy-1,4-naphthoquinone, Molecular oxygen, Metalloporphyrin catalyst, 2-Propanol