Gamma rules: The title reaction was achieved in a highly regioselective manner using aryl Grignard reagents with monodentate chiral N‐heterocyclic carbene–copper(I) catalyst to give diarylvinylmethanes with excellent enantiomeric excess in excellent yield (see scheme).
伽玛规则:使用芳基
格氏试剂与单齿手性N-杂环卡宾-
铜(I)催化剂,以高度区域选择性的方式实现标题反应,从而以极佳的收率得到对映体过量的二芳基
乙烯基甲烷(参见方案)。