title: E-[4-(β-d-Allopyranos-yloxy)phen-yl]-1-(4-chloro-phen-yl)prop-2-enone ethanol solvate.
abstract: The title compound, C(21)H(21)ClO(7)·C(2)H(5)OH was synthesized by the condensation reaction between helicid [systematic name: 4-(β-d-allopyranos-yloxy)benzaldehyde] and 4-chloro-aceto-phen-one in ethanol. In the mol-ecular structure, the pyran-oside ring adopts a chair conformation. In the crystal structure, the molecules are linked by inter-molecular O-H⋯O hydrogen bonds involving the OH groups from the pyran-oside unit and from the ethanol solvent mol-ecule.
authors.affiliation: College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China.
authors.forename: Cong-Ling
authors.initials: CL
authors.lastname: Yang
authors.forename: Hua-Ling
authors.initials: HL
authors.lastname: Luo
authors.forename: Xiu-Juan
authors.initials: XJ
authors.lastname: Yin
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Shu-Fan
authors.initials: SF
authors.lastname: Yin