Ethyl 5-oxo-4-phenyl-5,6-dihydro-4H-1,3,4-oxadiazine-2-carboxylate

The asymmetric unit of title compound, C12H12N2O4, consists of two independent molecules. In each molecule, the oxadiazine ring has a flattened envelope conformation with the methylene C atom as the flap atom, and the ethoxycarbonyl unit is in a syn-periplanar conformation with respect to the oxadia...

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Published inActa crystallographica. Section E, Structure reports online Vol. 70; no. 6; p. o661
Main Authors K. Shubakara, Chandra, N. Srikantamurthy, M. Mahendra, K. B. Umesha
Format Journal Article
LanguageEnglish
Published International Union of Crystallography 01.06.2014
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Summary:The asymmetric unit of title compound, C12H12N2O4, consists of two independent molecules. In each molecule, the oxadiazine ring has a flattened envelope conformation with the methylene C atom as the flap atom, and the ethoxycarbonyl unit is in a syn-periplanar conformation with respect to the oxadiazine ring as indicated by O—C—C=O torsion angles of 1.9 (4) and 2.5 (4)°. The dihedral angles between the mean plane of the oxadiazine ring and the phenyl ring are 80.07 (13) and 42.98 (14)°. In the crystal, molecules are linked by C—H...O hydrogen bonds and stacked in a double-column along the a-axis direction.
ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536814011106