Glycosyl phenyl sulfoxides as a source of glycosyl carbanions: Stereoselective synthesis of C-fucosides

Article abstract of DOI:10.1016/S0040-4039(98)01701-8

Phenylsulfmyl-lithium exchange on glycosyl phenyl sulfoxides leads to configurationally stable anomeric carbanions which can react stereoselectively with electrophiles. Thus, the reaction of 3,4-O- isopropylidene-α-L-fucopyranosyl phenyl sulfoxide with tB