Highly Enantioselective Borane Reduction of Prochiral Ketones Catalyzed by <i>C</i><sub>3</sub>-Symmetric Tripodal β-Hydroxy Amides
作者:Da-Ming Du、Tao Fang、Jiaxi Xu
DOI:10.1055/s-2006-941591
日期:2006.6
The asymmetricboranereduction of prochiral ketones with a series of easily constructed chiral C-3-symmetric tripodal tris(beta-hydroxyamide) ligands was investigated. The borane complex of chiral ligand 1,1',1"-(1,3,5-benzenetricarbonyl)-tris[(2S)-alpha,alpha-diphenl-2-pyrrolidinemethanol] (1h) was found to be an efficient catalyst in asymmetricboranereduction of prochiral ketones and excellent