Cycloalkanes bearing both an electron-withdrawing group and an arylsulfenyl or arylselenenyl function in β-position are shown to react with 2 equiv. of a carbenoid species to generate the corresponding Michael acceptor. The reaction occurs under very mild conditions and affords the products in good to excellent yields. The process constitutes a useful alternative to the oxidation/syn-elimination sequence
显示在β-位同时具有吸电子基团和芳基亚
硫基或芳基
硒烯基官能团的环
烷烃与2当量反应。类化合物生成相应的迈克尔受体。该反应在非常温和的条件下发生,并以良好至优异的产率提供产物。的方法构成,以氧化/有用的替代合成在剔除序列。