Acta Cryst. (2007). E63, o3376  [ doi:10.1107/S1600536807029959 ]

2-(3-Oxocyclohex-1-enyl)benzoic acid

F. T. Vieira, D. C. Menezes, G. M. de Lima and N. L. Speziali

Abstract: The title compound, C₁₃H₁₃NO₃, crystallizes with two molecules in the asymmetric unit. The values of the relevant C-C, C=C and C-N bond lengths indicate that the molecules exist in the enamine tautomeric form. In each molecule, the cyclohexene ring adopts a slightly distorted envelope conformation. Molecules are linked by intermolecular O-HO hydrogen bonds between carboxyl and C=O groups. There is also an intramolecular N-HO hydrogen bond in each molecule.

Online 5 July 2007

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