Enantioselective Hydrosilylation of Imines Catalyzed by Chiral Zinc Acetate Complexes
作者:Agata Bezłada、Marcin Szewczyk、Jacek Mlynarski
DOI:10.1021/acs.joc.5b02613
日期:2016.1.4
A series of zinc acetate complexes with optically pure diphenylethanediamine (DPEDA)-derived ligands have been employed as enantioselective catalyst for the hydrosilylation of various imines. High control of stereoselectivity (up to 97% ee) and excellent yields (up to 96%) were gained for a broad range of N-phosphinoylimines by using (R,R)-N,N′-dibenzyl-1,2-diphenylethane-1,2-diamine. This is the first
一系列具有光学纯的二苯乙二胺(DPEDA)衍生的配体的乙酸锌络合物已被用作对映选择性催化剂,用于各种亚胺的氢化硅烷化。通过使用(R,R)-N,N'-二苄基-1,2-二苯乙烷,对于广泛的N-膦基嘧啶类化合物,可以高度控制立体选择性(ee高达97%ee)和优异的产率(高达96%)-1,2-二胺 这是在不对称还原C═N双键方面,首次成功地应用了空气稳定且环境友好的手性Zn(OAc)2络合物,而不是先前使用的有害二乙基锌。