3-(4-Chloro-anilino)-2,5-dimethyl-cyclo-hex-2-en-1-one.

In the title compound, C(14)H(16)ClNO, the dihedral angle between the benzene ring and the conjugated part of the cyclo-hexene ring is 61.7 (2)°. Part of the cyclo-hexene ring and one of the attached methyl groups are disordered over two orientations with occupancies of 0.602 (7) and 0.398 (7). In addition, the crystal studied was a racemic twin [Flack parameter = 0.58 (4)]. In the crystal, the mol-ecules are linked into chains in the b-axis direction by inter-molecular N-H⋯O hydrogen bonds. C-H⋯O and C-H⋯Cl inter-actions are also observed.

2,5-Dimethyl-3-[4-(trifluoro-meth-oxy)anilino]-cyclo-hex-2-enone.

In the title compound, C(15)H(16)F(3)NO(2), the dihedral angle between the benzene ring and the conjugated part of the cyclo-hexene ring is 60.00 (8)°. The non-conjugated part of the cyclohexene ring and the trifluoro-methyl group are both disordered over two sets of sites with occupancies of 0.835 (2) and 0.165 (2). In the crystal, mol-ecules are linked into chains along [010] by inter-molecular N-H⋯O hydrogen bonds. Weak inter-molecular C-H⋯O inter-actions also occur.