In the title compound, C11H12O2, the dihedral angle between the benzene ring and the but-3-en-2-one group is 4.04 (5)°. The crystal packing features chains, parallel to [-101], composed of dimers connected by weak C—H⋯O inter­actions..

The asymmetric unit of the title compound, C14H16ClNO, contains two independent mol­ecules, both with the cyclo­hexene ring in a sofa conformation. In the crystal, N—H⋯O hydrogen bonds link the mol­ecules related by translation along the a axis into two crystallographically independent chains. Weak C—H⋯π inter­actions are also observed.

Key indicatorsSingle-crystal X-ray study T = 295 K Mean (C-C) = 0.003 Å R factor = 0.042 wR factor = 0.132 Data-to-parameter ratio = 15.8For details of how these key indicators were automatically derived from the article, see