Asymmetric Synthesis of Vicinal Tetrasubstituted Diamines via Reductive Coupling of Ketimines Templated by Chiral Diborons
作者:Mingkang Zhou、Yaodong Lin、Xiao‐Xuan Chen、Guangqing Xu、Lung Wa Chung、Wenjun Tang
DOI:10.1002/anie.202300334
日期:——
A series of chiral vicinaltetrasubstituted diamines are prepared with high ee values and good to excellent yields via an unprecedented chiral diboron-templated asymmetric homocoupling of aryl alkyl ketimines. The synthetic value of these chiral vicinaltetrasubstituted diamines is demonstrated by the development of efficient organocatalysts for the asymmetric α-bromination of aliphatic aldehydes.
通过前所未有的手性二硼模板化芳基烷基酮亚胺的不对称自偶联,制备了一系列具有高 ee 值和良好至极佳产率的手性邻位四取代二胺。这些手性邻位四取代二胺的合成价值通过开发用于脂肪醛不对称α-溴化的高效有机催化剂得到证明。