A mild method for the installation of the dimethylphenylsilyl group on the β-carbon of electron-deficient olefins is reported. In the presence of a catalytic amount of copper(II) (1 mol %) and amine base (5 mol %) at rt, the transformation proceeds efficiently in water within 1.5–5 h to afford β-silylated products in yields of up to 90%.
报道了一种温和的在缺电子烯烃的β-碳上安装二甲基苯基甲
硅烷基的方法。在室温下存在催化量的
铜(II)(1 mol%)和胺碱(5 mol%)的情况下,转化可以在
水中1.5–5 h内有效地进行,从而获得最高收率的β-甲
硅烷基化产物90%。