Chelation-assisted β-alkylation of α,β-unsaturated ketone using Rh(I) catalyst and dialkyl amine
作者:Chul-Ho Jun、Choong Woon Moon、Young-Min Kim、Hyuk Lee、Jun Hee Lee
DOI:10.1016/s0040-4039(02)00769-4
日期:2002.6
A new Rh(I)-catalyzed β-alkylation of 4-phenyl-3-buten-2-one (1) was developed by utilizing diethylamine (5a) as a chelation-assistant tool. The key feature of this reaction is the vinyl CH activation driven by amine-assisted cyclometalation to give the β,γ-unsaturated ketones 7 as a major product.
利用二乙胺(5a)作为螯合辅助工具,开发了一种新的Rh(I)催化的4-苯基-3-丁烯-2-酮(1)的β-烷基化反应。该反应的关键特征是由胺辅助的环金属化作用驱动的乙烯基CH活化,从而产生以β,γ-不饱和酮7为主要产物。