Cycloaddition of nitrile oxides to 3-O-benzyl-5,6-dideoxy-1,2-O-isopropylidene-α-D-ribo-hex-5-enofuranose

Article abstract of DOI:10.1016/0008-6215(92)84181-Q

Benzonitrile oxide and ethoxycarbonylformonitrile oxide cyclo-added to the title compound to afford a mixture of 3-substituted (phenyl or ethoxycarbonyl)(5R)- (6) and (5S)-5-(3-O-benzyl-1,2-O-isopropylidene-α-D-ribo-tetrofuranos-4-yl)-2-isoxazoline (7).Th