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.
