申请人:Albert-Ludwigs-Universitat Freiburg
公开号:US08212065B2
公开(公告)日:2012-07-03
A method for the production of optically active α-alkylcarbonyl compounds with retention of the stereo information of the starting compound. The starting compound used here is a carbonyl compound which has, in the α-position, a leaving group which is substituted by an alkyl group with inversion of the configuration. The substitution of the leaving group is effected with the use of an alkylmagnesium Grignard and a zinc (II) salt or a zinc organyl. The method permits the production of optically active α-alkylcarbonyl compounds at very mild temperatures (for example 0° C.) with the use of starting compounds which are easy to prepare and economical and nontoxic catalysts, it also being possible to achieve a very high yield.
一种制备光学活性α-烷基羰基化合物的方法,保留起始化合物的立体信息。此处使用的起始化合物是α-位置带有一个离去基团的羰基化合物,该离去基团被一个烷基镁格氏试剂和锌(II)盐或锌有机基团取代,其构型发生反转。使用这种方法可以在非常温和的温度下(例如0°C)使用易于制备和经济的起始化合物和无毒催化剂制备光学活性α-烷基羰基化合物,同时也可以实现非常高的产率。