On the mechanism of catalytic alkene oxidation by molecular oxygen and halogenated iron porphyrins

被引：44

作者：

Birnbaum, ER ^{[1
]}

Grinstaff, MW ^{[1
]}

Labinger, JA ^{[1
]}

Bercaw, JE ^{[1
]}

Gray, HB ^{[1
]}

机构：

[1] CALTECH,ARTHUR AMOS NOYES LAB CHEM PHYS,PASADENA,CA 91125

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 104卷 / 02期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

D O I：

10.1016/1381-1169(95)00199-9

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 halogenated porphyrin, 2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetrakis(pentafluorophenyl)porphyrinato-iron(III) chloride, [Fe(TFPPBr8)Cl], catalyzes the oxidation of cyclohexene in the presence of molecular oxygen or iodosobenzene. With PhIO, 77% epoxide is observed, consistent with a mechanism involving a high-valent metal-ore species. With dioxygen, however, allylic alcohol and ketone are observed, suggesting a different mechanism. The relatively high activity of the[Fe(TFPPBr8)Cl]/O-2 system suggests that the reaction involves the formation and decomposition of alkyl peroxides.

引用

页码：L119 / L122

页数：4

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