Optically active β-ketoiminato cationic cobalt(III) complexes:: Efficient catalysts for enantioselective carbonyl-ene reaction of glyoxal derivatives

被引:60
|
作者
Kezuka, S [1 ]
Ikeno, T [1 ]
Yamada, T [1 ]
机构
[1] Keio Univ, Fac Sci & Technol, Dept Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
关键词
D O I
10.1021/ol015980m
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHCIS] Optically active beta -ketoiminato cationic cobalt(lll) complexes were synthesized as effective Lewis acid catalysts for the enantioselective carbonylene reaction, In the presence of a catalytic amount of cobalt(lll) hexafluoroantimonate derived from the optically active 1,2-diphenyl-1,2-ethanediamine, the carbonyl-ene reaction with a variety of alkenes and glyoxal derivatives smoothly proceeded to afford the corresponding homoallylic alcohols in good-to high yields with high enantioselectivities.
引用
收藏
页码:1937 / 1939
页数:3
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