3,4-dicyanophenyl 2,3,4,6-tetra-O-acetyl-a-D-glucopyranoside

The title compound, C22H22N2O10, was prepared by the glycosidation method through nitrite displacement on substituted nitrophthalonitrile. The molecule contains a benzene ring, two nitrile groups and an acetyl-protected D-glucose fragment which adopts a chair conformation. The absolute configuration was determined by the use of D-glucose as starting material. All substituents of the protected sugar are in equatorial positions, with the exclusive presence of the alpha-anomer. The crystal packing is stabilized by C-H center dot center dot center dot O and C-H center dot center dot center dot N hydrogen-bonding interactions.