A stereospecific synthesis of vicinal amino alcohols by aminolysis of vinylepoxides
作者:Ulf M. Lindström、Remi Franckowiak、Nathalie Pinault、Peter Somfai
DOI:10.1016/s0040-4039(97)00224-4
日期:1997.3
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。