A combination of copper (I) trimethylsilylacetylide and chlorotrimethylsilane accelerates the conjugate addition of an alkyllithium to α, β-unsaturated esters to give the 1, 4-addition products in good yields.
铜(I)三甲基甲
硅烷基
乙炔化物和
氯代三甲基
硅烷的组合促进了烷基
锂向α,β-不饱和酯的共轭加成,从而以良好的收率得到1,4-加成产物。