O-Benzyl-, O-acyl-, N-acyl- and isopropylidene-protected glycosyl N-allylcarbamates, obtained from anomerically unprotected monosaccharides and allyl isocyanate, are activated by an electrophile-induced cyclisation and react with hydroxyl compounds to form the corresponding glycosides.
由未保护的
单糖和异
氰酸烯
丙酯得到的O-苄基,O-酰基,N-酰基和异亚丙基保护的糖基N-
烯丙基氨基甲酸酯,通过亲电试剂诱导的环化反应活化,并与羟基化合物反应形成相应的糖苷。