Acta Cryst. (2002). E58, o98-o101  [ doi:10.1107/S1600536801021742 ]

4-[(4-Ethoxyphenyl)aminoacetyl]-1,2,3,4-tetrahydroquinoxalin-2-one

R. Kruszynski, T. J. Bartczak and E. Mikiciuk-Olasik

Abstract: All interatomic distances in the title compound, C₂₀H₂₁N₃O₄, are normal. The heteroatom ring of the quinoxalinone system exists in a conformation intermediate between half-chair and sofa. The (4-ethoxyphenyl)amino moiety is nearly planar. The aminooxoethyl part can also be considered planar. There is one weak intramolecular C-HO hydrogen bond in the structure. The structure is assembled by intermolecular N-HO hydrogen bonds, to form a two-dimensional framework. One further C-HO short intermolecular interaction is present in the structure.

Online 11 January 2002

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