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In the title compound, C 16 H 21 NO, the cyclohexanone ring adopts a half-chair conformation; the dihedral angle between this ring (all atoms) and the benzene ring is 41.74 (16) . No directional interactions could be identified in the crystal. Structure descriptionCyclohexanone derivatives have various applications as drugs (e.g. Chen et al., 2010). As part our studies in this area, we now describe the synthesis via a Claissen-Schmidt condensation and crystal structure of the title compound (Fig. 1). In the arbitrarily chosen asymmetric molecule, C13 has an R configuration, but symmetry generates a racemic mixture in the crystal. The geometric parameters for the title compound are comparable with the corresponding values for similar reported structures (e.g. Shalini et al., 2013). The cyclohexanone ring adopts a half-chair conformation, with C10/C11/C14/C15 roughly coplanar (r.m.s. deviation = 0.075 Å ) and C12 and C13 deviating by 0.465 (5) and À0.234 (4) Å , respectively, from the other atoms. The dihedral angle between the cyclohexanone ring (all atoms) and the benzene ring is 41.74 (15) . The N1/C1/C2 dimethylamino group is almost coplanar with its attached benzene ring [dihedral angle = 2.6 (4) ] and the bondangle sum at the nitrogen atom of 359.8 clearly indicates sp 2 hybridization. No directional interactions could be identified in the crystal (Fig. 2) and van der Waals forces must be responsible for crystal cohesion.