李东红,陈淑华,赵华明.杯[6]芳烃-双锰卟啉催化苯乙烯环氧化反应的动力学[J].分子催化,2003,(1):10-13
杯[6]芳烃-双锰卟啉催化苯乙烯环氧化反应的动力学
Catalytic Performance of Calix[6]arene-bismanganeseporphyrins for the Epoxidation of Styrene and Kinetics of the Reaction
  修订日期:2002-08-19
DOI:
中文关键词:  杯[6]芳烃-双锰卟啉 P450酶模型 苯乙烯 环氧化 反应动力学 催化剂 催化活性
英文关键词:Calixarene\|bisporphyrin,Cytochrome P450 model compound,Styrene,Epoxidation,Kinetic law
基金项目:国家自然科学基金(N0:29572060,20272038)资助课题.
李东红  陈淑华  赵华明
四川大学化学学院 四川成都610064 (李东红,陈淑华)
,四川大学化学学院 四川成都610064(赵华明)
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中文摘要:
      研究了杯[6]芳烃-双锰卟啉仿P450酶模型化合物对苯乙烯环氧化反应的催化性能,考察了催化剂浓度、底物浓度、氧源浓度及加入方式等对催化反应的影响,结果表明,由于具有较大疏水孔穴的杯[6]芳烃的引入,使金属卟啉的催化性能得以较大的提高,且反应遵从Michaetis-menten规律,在实验基础上,本文提出了一种可能的反应机理。
英文摘要:
      Catalytic performance of P450 enzymatic model compound with calixarene\|bismetalloporphyrins was studied and the effects of temperature, catalyst concentration, substrate concentration, NaClO concentration and the mode of adding NaClO, etc, on the reaction of styrene epoxidation were investigated. The results show that calixarene\|bismetalloporphyrin has a much higher catalytic activity than the corresponding monometalloporphyrin. This is probably due to the intaking of calixarene which has a macrocyclic ring as the hydrophobic binding site. The kinetic study indicated that the reaction obeys the Michaclius\|Menten kinetic law. On the basis of all the experimental results, a reaction mechanism was proposed.
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