Optically active cationic cobalt(III) complexes: Highly efficient catalysts for enantioselective hetero Diels-Alder reaction

被引：34

作者：

Kezuka, S ^{[1
]}

Mita, T ^{[1
]}

Ohtsuki, N ^{[1
]}

Ikeno, T ^{[1
]}

Yamada, T ^{[1
]}

机构：

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

来源：

CHEMISTRY LETTERS | 2000年 / 07期

关键词：

D O I：

10.1246/cl.2000.824

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Optically active beta-ketoiminato cobalt(III) complexes were developed for use as effective catalysts of the enantioselective hetero Diels-Alder reaction of aryl and alkyl aldehydes with 1-methoxy-[3-(tert-butyldimethylsilyl)oxy]1,3-butadiene. In the presence of 5 mol% cationic cobalt(III) triflate complexes derived from optically active 1,2-bis(3,5-dimethylphenyl)-1,2-ethylenediamine, the hetero Diels-Alder reaction of p-nitrobenzaldehyde proceeded in 94% yield with 94% ee.

引用

页码：824 / 825

页数：2

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