Ethyl 2-[(2,6-dimethylphenyl)-hydrazono]-3-oxobutanoate

Abstract

The title compound, C<inf>14</inf>H<inf>18</inf>N<inf>2</inf>O<inf>3</inf>, crystallizes with two independent molecules in the asymmetric unit, having closely comparable geometries. Both molecules are essentially planar [maximum deviations from the mean plane of 0.069 (1) and 0.068 (1) Å for the two molecules] and contain an intramolecular N?H?O hydrogen bond which generates a ring with graph-set motif S(6). In the crystal, the molecules are linked into chains along the c axis by intermolecular C?H?O hydrogen bonds, and intermolecular C?H?? interactions are also present.