Mild and Selective O-Glycosylations of Primary Alcohols with the Thioglucosaminide Derivative Promoted by N-Iodosuccinimide and HBF4-Adosrobed on Silica Gel
摘要:
Selective glycosylations of primary alcohols with the thioglucosaminide 1 are achieved by using NIS and HBF4-SiO2. HBF4-SiO2 is a mild Bronsted acid which requires primary alcohols or phenols to effectively activate 1 with NIS at rt. A wide range of functional groups are tolerated under these conditions.