Stereochemical Control of the Reaction of Chlorosilane with Methyllithium by the Addition of Metal Cyanide: Inversion by Potassium Cyanide and Retention by Copper(I) Cyanide
作者:Kohei Tamao、Hayato Tsuji、Akio Toshimitsu
DOI:10.1055/s-2001-14634
日期:——
methyllithium mainly proceeds with inversion of configuration of the silicon atoms, (1) the yield being dramatically improved by the addition of potassium cyanide, and (2) the stereochemistry being changed to retention of configuration by the addition of copper(I) cyanide.
在1,4-二
氯四
硅烷衍
生物中,由带有两个五亚甲基连接臂的乙
硅烷单元组成,在与
甲基锂反应过程中,
硅原子上的
氯原子被甲基取代主要是通过
硅原子构型的反转,(1)通过加入
氰化钾显着提高了产率,以及 (2) 通过加入
氰化铜 (I) 将立体
化学改变为保留构型。