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[1-(3-Nitro-phen-yl)-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazin-3-ylidine]malonaldehyde.

ABSTRACT: The oxazine ring in the title compound, C(21)H(14)N(2)O(5), adopts a flattened boat conformation. The nitro-phenyl ring and the naphthalene ring system enclose a dihedral angle of 89.2?(1)°. An intra-molecular hydrogen bond is formed between the NH group and one of the adjacent carbonyl O atoms. In addition, the NH group forms an inter-molecular hydrogen bond to a symmetry equivalent of this carbonyl O atom, connecting the mol-ecules into centrosymmetric dimers. The structure also contains C-H?O inter-molecular inter-actions.

SUBMITTER: Nizammohideen M

PROVIDER: S-EPMC2968553 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature

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[1-(3-Nitro-phen-yl)-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazin-3-ylidine]malonaldehyde.

Nizammohideen M M Subbiahpandi A A Selvam N Panneer NP Perumal P T PT Damodiran M M

Acta crystallographica. Section E, Structure reports online 20090225 Pt 3

The oxazine ring in the title compound, C(21)H(14)N(2)O(5), adopts a flattened boat conformation. The nitro-phenyl ring and the naphthalene ring system enclose a dihedral angle of 89.2 (1)°. An intra-molecular hydrogen bond is formed between the NH group and one of the adjacent carbonyl O atoms. In addition, the NH group forms an inter-molecular hydrogen bond to a symmetry equivalent of this carbonyl O atom, connecting the mol-ecules into centrosymmetric dimers. The structure also contains C-H⋯O ...[more]

PMID: 21582237

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