On the stereochemistry of osmium tetraoxide oxidations of allylic systems used in the synthesis of higher-carbon sugars
作者:John S. Brimacombe、Abul K.M.S. Kabir
DOI:10.1016/0008-6215(88)84106-5
日期:1988.8
Abstract The stereochemistry of the major osmylation products of carbohydrate-based allylic alcohols can usually be predicted by application of Kishi's empirical rule. In particular, the addition of OsO 4 can be formulated as taking place in the more abundant conformation on the surface anti to a pyranose or furanose ring-oxygen atom located at a stereocentre adjacent to the olefinic linkage. Exceptions