Acta Cryst. (2009). E65, o3006  [ doi:10.1107/S1600536809045991 ]

4-[(2,5-Dimethylanilino)acetyl]-3,4-dihydroquinoxalin-2(1H)-one

W. Nasir, M. A. Munawar, S. Ahmad, S. Nadeem and M. Shahid

Abstract: In the title compound, C₁₈H₁₉N₃O₂, the dihedral angle between the benzene rings is 20.47 (10)° and an intramolecular N-HO hydrogen bond occurs, generating an S(5) ring. In the crystal, inversion dimers linked by pairs of N-HO hydrogen bonds lead to R₂²(8) loops.

Online 7 November 2009

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