Chiral Dienes as “Ligands” for Borane-Catalyzed Metal-Free Asymmetric Hydrogenation of Imines
作者:Yongbing Liu、Haifeng Du
DOI:10.1021/ja4025808
日期:2013.5.8
This paper describes a highly enantioselective metal-free hydrogenation of imines using chiral dienes as "ligands" for the generation of catalysts with HB(C6F5)2 by hydroboration in situ to furnish a variety of chiral amines with up to 89% ee, which provides a practical strategy for the development of novel chiralfrustratedLewispairs for asymmetric hydrogenation.
本文描述了使用手性二烯作为“配体”对亚胺进行高度对映选择性的无金属氢化,通过原位硼氢化反应生成具有 HB(C6F5)2 的催化剂,以提供各种手性胺,其 ee 高达 89%,从而提供开发用于不对称氢化的新型手性受阻路易斯对的实用策略。