Trialkylsilyl chlorides, particularly in combination with hexamethylphosphoramide or 4-dimethylaminopyridine, dramatically accelerates the conjugate addition of catalytic and stoichiometric organocopper reagents onto enones, enals, and enoates, in which very high degrees of stereo- and chemoselectivities were observed.
三烷基甲
硅烷基
氯化物,特别是与六甲基
磷酰胺或4-二甲基
氨基吡啶组合,可显着加速催化和
化学计量的
有机铜试剂在烯酮,烯醛和烯酸酯上的共轭加成,其中观察到很高的立体和
化学选择性。