Remarkable enhancement of aerobic epoxidation reactivity for olefins catalyzed by μ-oxo-bisiron(III) porphyrins under ambient conditions

被引：57

作者：

Zhou, Xian-Tai ^{[1
]}

Tang, Qing-Hua ^{[2
]}

Ji, Hong-Bing ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China

来源：

TETRAHEDRON LETTERS | 2009年 / 50卷 / 47期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

mu-Oxo dimeric iron(III) porphyrins; Olefins; Epoxidation; Dioxygen; MESO-TETRAPHENYLPORPHYRIN CHLORIDE; MOLECULAR-OXYGEN; HYDROGEN-PEROXIDE; MILD CONDITIONS; SELECTIVE OXIDATION; MANGANESE-PORPHYRIN; UNFUNCTIONALIZED OLEFINS; ASYMMETRIC EPOXIDATION; ALKENE EPOXIDATION; CARBONYL-COMPOUNDS;

D O I：

10.1016/j.tetlet.2009.09.061

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

With mu-oxo dimeric iron(III) porphyrins [((FeTPP)-T-III)(2)O] as a catalyst, isobutylaldehyde as co-reductant, and dioxygen as oxidant, an efficient model system for epoxidation of olefins has been developed Compared with mono-metalloporphyrins as catalyst, a remarkable enhancement of reactivity was obtained for the present olefin epoxidation system. in which the turnover number (TON) of the catalyst has doubled from about 700 million to 1400 million Moreover. a plausible mechanism involving both binuclear and mono-nuclear intermediate has been proposed (C) 2009 Elsevier Ltd All rights reserved I

引用

页码：6601 / 6605

页数：5

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