New Approach to C-Aryl Glycosides Starting from Phenol and Glycosyl Fluoride. Lewis Acid-Catalyzed Rearrangement of O-Glycoside to C-Glycoside

Article abstract of DOI:10.1016/S0040-4039(00)88479-8

C-Glycosidation of phenols is achieved by treatment of glycosyl fluoride with phenolic compound under Lewis acidic conditions, wich leads to initial O-glycoside formation followed by rearrangement to C-congener.Cp2HfCl2-AgClO4 is particularly effective for this conversion.