2,3:4,5-Di-O-isopropylidenefructos-1-ylp-toluenesulfonate

Abstract

The title compound, C19H26O8S, has been synthesized from 2,3:4,5-di-O-isopropyl­idene-β-d-fructopyran­ose. The absolute configuration of the fused ring is confirmed by anomalous dispersion effects in the diffraction measurement. The six-membered β-fructopyran­ose ring has a twist-boat conformation with the two five-membered rings trans to each other. In the crystal, inter­molecular non-classical C—H⋯O hydrogen bonds link the mol­ecules into a three-dimensional network.