Highly enantioselective cyclopropanation of styrene derivatives using Co(III)-salen complex as a catalyst

被引：139

作者：

Fukuda, T ^{[1
]}

Katsuki, T ^{[1
]}

机构：

[1] KYUSHU UNIV 33,FAC SCI,DEPT CHEM,HIGASHI KU,FUKUOKA 81281,JAPAN

来源：

TETRAHEDRON | 1997年 / 53卷 / 21期

关键词：

D O I：

10.1016/S0040-4020(97)00423-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Optically active (salen)cobalt(III) bromide complex 6-Br was found to be an efficient catalyst for asymmetric cyclopropanation of styrene derivatives. For example, the reaction of 4-chlorostyrene and tert-butyl diazoacetate in the presence of 6-Br proceeded with high enantioselectivity of 96% ee as well as high trans-cis selectivity (97:3) to give tert-butyl 2-(4-chlorophenyl)cyclopropane-1-carboxylate as a major product. (C) 1997 Elsevier Science Ltd.

引用

页码：7201 / 7208

页数：8

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