Asymmetric Hydrogenation of N-Alkyl Ketimines with Phosphine-Free, Chiral, Cationic Ru-MsDPEN Catalysts
作者:Fei Chen、Tianli Wang、Yanmei He、Ziyuan Ding、Zhiwei Li、Lijin Xu、Qing-Hua Fan
DOI:10.1002/chem.201002846
日期:2011.1.24
(Solvent) free and easy: A phosphine‐free, chiral, cationic Ru–MsDPEN complex [(S,S)‐1] is found to be an efficient catalyst for the enantioselective hydrogenation of a range of often‐problematic N‐alkyl ketimines (see scheme). This new method provides a more practical and greener synthetic approach to optically active amines, particularly N‐alkyl amines, such as Sertraline.
(溶剂)易用:无膦,手性,阳离子的Ru-MsDPEN络合物[(S,S)-1 ]是有效的催化剂,用于对一系列经常有问题的N烷基酮亚胺进行对映选择性氢化(请参阅方案)。这种新方法为旋光性胺(尤其是N-烷基胺,如舍曲林)提供了一种更实用,更绿色的合成方法。