Metal ion-complexes of alpha,beta-unsaturated ketones acting as actual reactive species in Michael addition of ketene silyl acetal

被引:2
作者
Fukuzumi, S [1 ]
Okamoto, T [1 ]
Yasui, K [1 ]
Suenobu, T [1 ]
Itoh, S [1 ]
Otera, J [1 ]
机构
[1] OKAYAMA UNIV SCI, DEPT APPL CHEM, OKAYAMA 700, JAPAN
关键词
D O I
10.1246/cl.1997.667
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The Michael addition of beta,beta-dimethyl-substituted ketene silyl acetal [Me2C=C(OMe)OSiMe3] with alpha,beta-unsaturated ketones occurs efficiently in the presence of magnesium perchlorate or lutetium trifluoromethanesulfonate in acetonitrile at 298 K via the 1 : 1 complexes between alpha,beta-unsaturated ketones and the metal ion, in which the coordination of the metal ion enhances the electrophilicity of alpha,beta-unsaturated ketones to accelerate the reaction rate.
引用
收藏
页码:667 / 668
页数:2
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