Tunable activation of glycosyl trichloro- and (N-phenyl)trifluoro- acetimidates with ytterbium(III) triflate: One-pot synthesis of trisaccharides under catalytic conditions

Article abstract of DOI:10.1055/s-2006-932484

A mild promoter such as Yb(OTf)₃ allows selective activation of glycosyl trichloroacetimidate building blocks in the presence of glycosyl (N-phenyl)trifluoroacetimidates with a similar pattern of protecting groups. This selectivity has been exp