title: (E)-4-(β-d-Allopyran-os-yloxy)cinnamyl 4-bromo-phenyl ketone ethanol solvate.
abstract: The title compound, C(21)H(21)BrO(7)·C(2)H(6)O, was synthesized by the Claisen-Schimidt reaction of helicid (systematic name: 4-formyl-phenyl-β-d-allopyran-oside) with 4-bromo-aceto-phenone in ethanol. The pyran ring adopts a chair conformation. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular O-H⋯O hydrogen bonds.
authors.affiliation: College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China.
authors.forename: Xiu-Juan
authors.initials: XJ
authors.lastname: Yin
authors.forename: Xue
authors.initials: X
authors.lastname: Bai
authors.forename: Lei
authors.initials: L
authors.lastname: Zheng
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Shu-Fan
authors.initials: SF
authors.lastname: Yin