Highly Effective Asymmetric Hydrogenation of Cyclic <i>N</i>-Alkyl Imines with Chiral Cationic Ru-MsDPEN Catalysts
作者:Fei Chen、Ziyuan Ding、Jie Qin、Tianli Wang、Yanmei He、Qing-Hua Fan
DOI:10.1021/ol201679f
日期:2011.8.19
A range of cyclic N-alkyl imines were efficiently hydrogenated by using a chiralcationic Ru(η6-cymene)(MsDPEN)(BArF) complex (MsDPEN = N-(methanesulfonyl)-1,2-diphenylethylenediamine) in high yields and up to 98% ee. A one-pot synthesis of chiral 2-phenylpyrrolidine via reductive amination was also developed.