Organocatalytic Enantioselective Synthesis of Chiral Diarylmethylamines from Racemic Alcohols
作者:Min Chen、Yaodong Han、Dengke Ma、Yong Wang、Zengwei Lai、Jianwei Sun
DOI:10.1002/cjoc.201800135
日期:2018.7
An organocatalytic approach for direct conversion of racemic diarylmethanols to valuable chiral diarylmethylamines is described. Different from the previously reported elegant “borrowing hydrogen” approach, the present process employs a distinct complementary formal SN1 strategy. This approach enjoys excellent enantioselectivity, mild conditions, broad scope, and easy product derivatization. Mechanistically
描述了将外消旋二芳基甲醇直接转化为有价值的手性二芳基甲胺的有机催化方法。与先前报道的优雅的“借用氢”方法不同,本方法采用了独特的互补形式S N 1策略。这种方法具有出色的对映选择性,温和的条件,广泛的范围以及容易的产品衍生化。从机理上讲,对照实验还提供了对某些显着特征的重要见解,例如底物动力学拆分和可逆性以及邻羟基在底物中的关键作用。