Tris(pentafluorophenyl)borane-promoted stereoselective glycosylation with glycosyl trichloroacetimidates under mild conditions
Tris(pentafluorophenyl)borane-promoted stereoselective glycosylation with trichloroacetimidate glycosyl donors is described. The reactions proceed efficiently with a wide range of acceptors, from sugar to nonsugar, under mild conditions in the presence of
A FACILE SYNTHESIS OF α-GLUCOSIDES AND α-RIBOSIDES FROM THE CORRESPONDING 1-O-ACYL SUGARS AND ALCOHOLS IN THE PRESENCE OF TRITYL PERCHLORATE
In the presence of trityl perchlorate, 1-O-bromoacety-β-D-glucose stereoselectively reacts with alcohols to give the corresponding α-glucosides in good yields.The similar reaction of 1-O-acetyl-β-D-ribose affords the corresponding β-ribosides exclusively,