The phenylsulfonyl-substituted vinylic epoxide 1 was allowed to react with BF3·OEt2 and various aromatics. A highly regioselective but moderately stereoselective mono-FriedelâCrafts reaction occurred which led to products 2 (Table 1). The fluorine-containing compounds 3aâb and 4 were obtained as side products.
苯磺酰基取代的
乙烯基环氧化物1与
BF3·OEt2和各种
芳烃反应。发生高度位向选择性但中等立体选择性单次Friedel-Crafts反应,生成产物2(表1)。含
氟化合物3a-b和4作为副产物获得。