Under sonication in aqueous ethanol, a zincâcopper couple induces the conjugated addition of epoxyalkyl groups to electron deficient alkenes in synthetically useful yields, provided that the two reducible functionalities are sufficiently far apart; 3,4-epoxyalkylhalides have been found to form cyclopropane adducts.
在
乙醇水溶液中超声处理下,
锌-
铜对会诱导环氧烷基基团与缺电子烯烃发生共轭加成,从而获得合成上有用的产率,前提是两个可还原官能团相距足够远。已发现3,4-环氧烷基卤化物可形成
环丙烷加合物。