A stereoselective and preparative entry to 1,2-anhydrosugars through oxidation of glycals with perfluoro-cis-2,3-dialkyloxaziridines
Abstract
Perfluoro-cis-2,3-dialkyloxaziridines 1 perform the direct epoxidation of glycals 2 to give cleanly corresponding 1,2-anhydrosugars 3 with medium to complete diastereoselection; elaboration of these glycals to glycosyl fluorides and lipid conjugates is also reported.