An enantioselective Si‐H insertion between α‐arylvinyldiazoesters and silanes has been developed by employing rhodium(I)/chiral diene complex as the catalyst. This protocol offers a catalytic asymmetric approach to various chiral silanes containing α‐arylvinyl functionality at room temperature with good enantiocontrol (89‐99% ee). Transformation of the resulting enantiomerically enriched α‐arylvinyl‐α‐silyl
通过使用
铑(I)/手性二烯络合物作为催化剂,开发了α-芳基
乙烯基重氮酯和
硅烷之间的对映选择性Si-H插入。该方案为室温下含有 α-芳基
乙烯基官能团的各种手性
硅烷提供了一种催化不对称方法,具有良好的对映体控制(89-99% ee)。所得对映体富集的 α-芳基
乙烯基-α-甲
硅烷基酯的转化产生了各种其他有价值的结构单元。
氘动力学同位素效应实验揭示了
铑(I)介导的协同 Si-H 插入机制。