Ontology highlight
ABSTRACT:
SUBMITTER: Wang H
PROVIDER: S-EPMC2983746 | biostudies-literature | 2010 Feb
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20100203 Pt 3
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 inte ...[more]