Abstract
In this part other procedures of glycosylation reactions by direct activation are presented. We will focus on the n-pentenyl glycoside, the O-alkylation and the trichloroacetimidate methods. The use of glycosyl phosphates and glycals in glycosidation reactions are also discussed. Updated examples of these glycosylation methodologies involving total synthesis of oligosaccharides and related compounds are considered.
Keywords: Glycosylation, oligosaccharides, pentenyl glycosides, trichloroacetimidates, glycosyl phosphates, glycals, glycosyl donors, glycosyl acceptors, n-pentenyl 1, 2-orthoesters, NPG, NPOE, thioglycosides, orthogonal glycosylation, chemoselective glycosidations.