title: 3-[(E)-1-(Benzyl-oxyimino)eth-yl]-2-oxo-2H-chromen-7-yl acetate.
abstract: The title compound, C(20)H(17)NO(5), was prepared by the reaction of 3-acetyl-2-oxo-2H-chromen-7-yl acetate with benzyl-oxy-amine. The mol-ecule adopts an E configuration with respect to the C=N double bond. The dihedral angles between the coumarin ring system, the phenyl ring and the C=N-O-C plane of the oxime unit are 35.83 (6), 35.8 (2) and 69.99 (15)°, respectively. In the crystal, a two-dimensional supra-molecular network is assembled through weak inter-molecular C-H⋯O hydrogen-bonding inter-actions.
authors.affiliation: School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Su-Hua
authors.initials: SH
authors.lastname: Xu
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Zeng
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Zhang