Chemistry Letters, Vol.29, No.2, 122-123, 2000
The trityl tetrakis(pentafluorophenyl)borate catalyzed stereoselective glycosylation using new glycosyldonor, 3,4,6-tri-O-benzyl-2-O-p-toluoyl-beta-D-glucopyranosyl phenylcarbonate
The trityl tetrakis(pentafluorophenyl)borate [TrB(C6F5)(4)] catalyzed stereoselective synthesis of various disaccharides was successfully carried out by treating a new 2-O-acyl-protected glycosyl donor, 3,4,6-tri-O-benzyl-2-O-p-toluoyl-beta-D-glucopyranosyl phenylcarbonate, with several glycosyl accepters, thioglycosides, affording the corresponding disaccharides in high yields.