Structure Reports Online

Volume 65, Part 3 (March 2009)

organic compounds

Acta Cryst. (2009). E65, o634 [ doi:10.1107/S1600536809006424 ]

E-[4-(-D-Allopyranosyloxy)phenyl]-1-(4-chlorophenyl)prop-2-enone ethanol solvate

C. Yang, H. Luo, X. Yin, Y. Li and S. Yin

Abstract: The title compound, C₂₁H₂₁ClO₇·C₂H₅OH was synthesized by the condensation reaction between helicid [systematic name: 4-( [beta] -D-allopyranosyloxy)benzaldehyde] and 4-chloroacetophenone in ethanol. In the molecular structure, the pyranoside ring adopts a chair conformation. In the crystal structure, the molecules are linked by intermolecular O-HO hydrogen bonds involving the OH groups from the pyranoside unit and from the ethanol solvent molecule.