申请人:President and Fellows of Harvard College
公开号:US06369223B2
公开(公告)日:2002-04-09
The present invention relates to a process for stereoselective cycloaddition reactions which generally comprises a cycloaddition reaction between a pair of substrates, each either chiral or prochiral, that contain reactive &pgr;-systems, in the presence of a non-racemic chiral catalyst, to produce a stereoisomerically enriched product. The present invention also relates to novel asymmetric catalyst complexes comprising a metal and an asymmetric tridentate ligand.
本发明涉及一种立体选择性环加成反应过程,该过程通常包括在一对含有反应性π系统的底物之间进行环加成反应,每个底物要么是手性的,要么是潜手性的,在非对映体手性催化剂的存在下,产生立体异构体富集的产品。本发明还涉及新颖的非对称催化剂配合物,包括一个金属和一个非对称三齿配体。