Highly Enantioselective Michael Addition of Ketone to Alkylidene Malonates Catalyzed by Binaphthyl Sulfonimides in Water
作者:Shengjian Jia、Chunhua Luo、Daming Du
DOI:10.1002/cjoc.201200910
日期:2012.11
Binaphthyl sulfonimides have been developed to catalyze the asymmetric Michaeladdition of ketone to alkylidene malonates, affording the corresponding Michael products in good to high yields (up to 98%) with good to excellent diastereoselectivity (up to 99:1 dr) and enantioselectivity (up to 92% ee) under mild conditions using environmentally benign water as the solvent.