Stability of various metalloporphyrin catalysts during hydrogen peroxide epoxidation of alkene

被引：85

作者：

Cunningham, ID ^{[1
]}

Danks, TN ^{[1
]}

Hay, JN ^{[1
]}

Hamerton, I ^{[1
]}

Gunathilagan, S ^{[1
]}

Janczak, C ^{[1
]}

机构：

[1] Univ Surrey, Sch Phys & Chem, Dept Chem, Guildford GU2 7XH, Surrey, England

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2002年 / 185卷 / 1-2期

关键词：

metalloporphyrins; stability; epoxidation; hydrogen peroxide;

D O I：

10.1016/S1381-1169(02)00057-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The ability of certain Fe and Mn metalloporphyrins to catalyse the H2O2 epoxidation of cyclooctene is analysed. The 'efficiency' of epoxidation is dissected into contributions due to inherent catalyst epoxidation ability, catalyst H2O2 dismutation ability, and catalyst stability towards the oxidant. It is shown that catalyst stability is a major factor contributing to apparent catalyst ability. The preparation of a sol-gel encapsulated metalloporphyrin is reported and it is shown to exhibit reduced rate of epoxidation, but a much enhanced stability. (C) 2002 Elsevier Science B.V All rights reserved.

引用

页码：25 / 31

页数：7

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