The synthetic utility of the Wittig-Horner reaction in the synthesis of C-glycosides is illustrated by the preparation of the α-and β-glycosyl acetates of the 2,3,4,6-tetra-O-benzyl-D-mannopyranose and of the 2,3,4,6-tetra-O-benzylglucopyranose. A partial epimerization of the C-2 carbon of the starting protected carbohydrate is observed.
P. Allevi, P. Ciuffreda, D. Colombo, D. Monti, G. Speranza and P. Manitto, J. Chem. Soc., Perkin Trans. 1, 1989, 1281 DOI: 10.1039/P19890001281
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