Several vinylepoxides have been prepared and subjected to a TsOH·H2O-catalyzed aminolysis reaction to afford the corresponding amino alcohols in good yields. The nucleophilic addition is stereospecific and proceeds with high regioselectivity at the allylic position, unless other stereoelectronic effects competes. The aminolysis reaction is sensitive to steric hindrance at or in the proximity of the
已经制备了几种
乙烯基环氧化物,并使其经过TsOH·H 2 O催化的
氨解反应,以高收率得到相应的
氨基醇。亲核加成是立体特异性的,并且在烯丙基位置具有高区域选择性,除非其他立体电子效应竞争。
氨解反应对
环氧乙烷核或其附近的空间位阻敏感。