Carbocyanation of trisubstituted olefins via Cu-catalyzed atom transfer radical addition
作者:Shin Kamijo、Shinya Yokosaka、Masayuki Inoue
DOI:10.1016/j.tetlet.2012.06.004
日期:2012.8
carbocyanation of non-polarized trisubstituted olefins 1 has been achieved by employing chlorinated cyanides 2 as starting materials. The present reaction gives the carbocyanated product 3 through radical-based 1,3-transfer of CN. Consequently, two different carbon units, cyano and chlorocyanomethyl groups, are introduced into the highly substituted olefins, generating consecutive quaternary and tertiary
通过使用氯化氰化物2作为起始原料,实现了非极化三取代烯烃1的区域选择性Cu(I)催化的碳氰化反应。本反应通过CN的基于自由基的1,3-转移而得到碳氰化产物3。因此,将两个不同的碳单元氰基和氯氰甲基引入到高度取代的烯烃中,生成连续的季碳和叔碳。由于两个连接的碳单元都可以用作进一步合成细节的处理,因此当前的转换为快速构建结构复杂的碳骨架提供了一种新的合成方法。