4-Formylphenyl 2,3,4,6-tetra-O-acetyl-β-d-allopyranoside

Abstract

The title compound, C21H24O11, crystallizes exclusively as the β-anomer. The substituent of the protected sugar at position C-3 is in the axial position, while all other groups are in equatorial positions. The pyranoside ring adopts a stable chair conformation.