PREPARATION OF METHYL 4,6-O-BENZYLIDENE-2,3-DIDEOXY-2,3-DINITRO-α-D-GLUCOPYRANOSIDE AND ITS SELECTIVE CONVERSION INTO THE CORRESPONDING 2-NITRO-2-ENOPYRANOSIDE

Article abstract of DOI:10.1016/S0008-6215(00)85519-6

Treatment of methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-α-D-erythro-hex-2-enopyranoside (3) with sodium nitrite in benzene-water in the presence of small amounts of tributylhexadecylphosphonium bromide as a phase-transfer catalyst afforded the 2-nitro a