Highly enantioselective cyclopropanation of styrenes with diazoacetates catalyzed by optically active β-ketoiminato cobalt(II) complexes

被引：46

作者：

Ikeno, T ^{[1
]}

Sato, M ^{[1
]}

Yamada, T ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

CHEMISTRY LETTERS | 1999年 / 12期

关键词：

D O I：

10.1246/cl.1999.1345

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The highly enantioselective cyclopropanation of styrenes with diazoacetates was achieved using reasonably designed beta-ketoiminato cobalt(II) complex catalysts. In the presence of optically active cobalt(II) complexes derived from optically active 1,2-(2,4,6-trimethylphenyl)-1,2-ethylenediamine, the cyclopropanation of styrene with methyl, ethyl, and tert-butyl diazoacetates proceeded to afford the corresponding cyclopropanecarboxylates with 94-96% ee.

引用

页码：1345 / 1346

页数：2

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