New glycosylation reaction based on alkyne-Co2(CO)6 complex

Article abstract of DOI:10.1016/S0040-4039(97)00983-0

O-Protected glycopyranoside possessing 4-(O-protected-glucosyl)-6-phenyl-5-hexynoate residue at anomeric position was converted into the corresponding cobalt complex, which on exposure to trimethylsilyl trifluoromethanesulfonate afforded glucosylglucoside derivative in a good yield via internal delivery of glycosyl acceptor, Similar O-protected galactopyranoside and mannopyranoside derivatives provided the corresponding galactosylglucoside and mannosylglucoside derivative, respectively.