Abstract

1-Azido-1-deoxy-2,3,4,6-tetra-O-acetyl-β-D-glucopyranose reacts with various terminal alkynes in the presence of CuSO 4 /ascorbic acid in water to give the corresponding 1,4-disubstituted 1,2,3-triazoles, which are isolated in high yield and purity by simply filtering the precipitate from the reaction mixture. Several sugar-derived acetylenes react similarly to yield triazole-linked disaccharide analogs.

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