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Synlett 1990; 1990(8): 445-448
DOI: 10.1055/s-1990-34720
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Anomeric S-Xanthates of 2-Azido-2-deoxy-D-galactopyranosyl Derivatives as Efficient Glycosyl Donors1

Alberto Marra* , Lian Kiow Shi  Shun, Françoise Gauffeny, Pierre Sinaÿ
  • *Ecole Normale Supérieure, Laboratoire de Chimie, UA 1110, 24 Rue Lhomond, F-75231 Paris Cedex 05, France
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Publication Date:
08 March 2002 (online)

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Variously substituted O-ethyl S-(2-azido-2-deoxy-D-galactopyranosyl) dithiocarbonates have been easily prepared via a two-step azidoxanthation reaction of the corresponding galactals (1,5-anhydro-2-deoxy-D-lyxo-hex-1-enitols). They are efficient glycosyl donors for the stereoselective synthesis of protected precursors of biologically important galactosamine-containing oligosaccharides.