A reagent system comprising tetrabutylammonium nitrate–trifluoroacetic anhydride–triethylamine has been developed for the synthesis of 2-nitroglycals from various protected glycals. The base-catalyzed Ferrier rearrangement on tri-O-acetylated 2-nitroglycals has been reported for the first time. Reactivity of these nitroacetates and associated selectivity has been examined, and some of the products
已开发出一种由
硝酸四丁
铵-
三氟乙酸酐-
三乙胺组成的试剂系统,用于从各种受保护的
糖类合成2-硝基
糖类。首次报道了在三-O-乙酰化的2-硝基糖上的碱催化的Feer重排。已经检查了这些硝基
乙酸盐的反应性和相关的选择性,并且将某些产物转化为2,3-二
氨基-2,3-二
脱氧糖苷和
甲基N-乙酰基-d- lividosaminide。