... Carbohydrate Research. Volume 381, 15 November 2013, Pages 12–18. ... Linking carbohydrate units by glycosylation has proven to be one of the most difficult synthetic processes to control stereoselectivity. Among all the existing strategies for the glycosylation of sugars, Fischer's glycosylation is the earliest and the simplest. ... Linhardt 11 and 12 and Augé 13 have recently reported a convenient method to catalyze O-glycosylation with free carbohydrates. ...