4-Methoxyphenyl 2,3,4,6-tetra-O-acetyl-1-thio-α-d-mannopyranoside

Abstract

The title compound, C21H26O10S, was synthesized in a single step from mannose pentaacetate. The molecular structure confirms the α configuration of the anomeric thioaryl substituent. Spectroscopic and melting-point data obtained for the title compound are in disagreement with those previously reported, indicating the previously reported synthesis [Durette & Shen (1980). Carbohydr. Res. 81, 261–274] to be erroneous. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen bonds.