摘要:
A series of alpha-nucleofuge alpha',beta'-unsaturated ketones encompassing a variety of structural types and nucleofuges was prepared. Treatment of these compounds with lithium dimethylcuprate or methylcopper leads primarily to either reductive cleavage of the alpha-nucleofuge or conjugate addition. Good alpha-nucleofuges favored the reduction pathway while poorer nucleofuges favored conjugate addition.