Highly Enantioselective Addition of Me<sub>2</sub>Zn to Aldehydes Catalyzed by ClCr(Salen)
作者:Pier Giorgio Cozzi、Peter Kotrusz
DOI:10.1021/ja057969d
日期:2006.4.1
enantiomeric excesses are obtained in the addition of Me2Zn catalyzed by commercially available ClCr(Salen). Broad scope, simple procedure, room temperature, low catalyst loading are the characteristics of this new enantioselective process, which uses the rather unreactive Me2Zn. Enantiomeric excesses in the range of 71-99% are obtained with all the aldehydes tested.
在由市售的 ClCr(Salen) 催化的 Me2Zn 的添加中获得高对映体过量。范围广、程序简单、室温、催化剂负载量低是这种新的对映选择性工艺的特点,它使用相当不活泼的 Me2Zn。所有测试的醛都获得了 71-99% 范围内的对映体过量。