The asymmetric unit of the title compound, C(16)H(13)NO(3), contains two independent mol-ecules related approximately by a pseudo-twofold rotation axis. The dihedral angle between the nitro-benzene and methyl-phenyl rings is 42.18 (6)° in one mol-ecule and 12.97 (6)° in the other. In both mol-ecules, the nitro group is slightly twisted away from the attached benzene ring. In the crystal structu...

The title compound, C(21)H(19)BrN(2)OS, exists in a cis conformation with respect to the N=C bond [1.2602 (14) Å]. The cyclo-hexene ring adopts a distorted half-chair conformation and the C-N bond lies in an equatorial orientation. The thia-zolidine ring forms dihedral angles of 53.76 (7) and 57.22 (7)° with the benzene and bromo-substituted benzene rings, respectively. The dihedral angle betwe...

In the title compound, C(21)H(24)O(3), the enone group adopts an s-cis conformation. The planes of the aromatic rings are inclined at an angle of 6.1 (1)°. The alk-oxy tail is not linear, with the maximum deviation from the least-squares plane being 0.375 (2) Å. Mol-ecules are connected into extended chains along the a axis through O-H⋯O(carbon-yl) hydrogen bonds and are inter-linked via C-H⋯O ...

The title compound, C(16)H(13)FO(2), was prepared from 4-methoxy-hypnone and 4-fluoro-benzophenone by Claisen-Schmidt condensation. All the bond lengths and bond angles are in normal ranges. The dihedral angle formed by the two benzene rings is 33.49 (2)°. The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen-bonding inter-actions.

The title compound, C(17)H(16)ClNO, was synthesized using a solvent-free method by reaction of 4-(dimethyl-amino)benzaldehyde with 4-chloro-acetophenone and NaOH. The chloro-phenyl ring makes a dihedral angle of 18.1 (3)° with the central propenone unit, while the (dimethyl-amino)phenyl group is disordered over two orientations of equal occupancies, which make dihedral angles with the central p...

The title compound, C27H26O3, crystallized with two independent mol-ecules (A and B) in the asymmetric unit. In mol-ecule A, the plane of the central benzene ring forms dihedral angles of 75.78 (14) and 52.75 (16)° with that of the terminal benzene rings, and the dihedral angle between the planes of the terminal benzene rings is 51.49 (17)°. The corresponding values for mol-ecule B are 75.18 (1...

In the title compound, C(25)H(32)O(3), the asymmetric unit contains two crystallographically independent mol-ecules: both enone groups adopt an s-cis configuration. In the crystal, O-H⋯O and C-H⋯O inter-molecular inter-actions form bifurcated hydrogen bonds, which generate R(1) (2)(6) ring motifs. These inter-molecular inter-actions link the mol-ecules into one-dimensional chains along the [10]...

The title compound, C(16)H(13)ClO, adopts an E configuration with respect to the C=C double bond of the propenone unit. The dihedral angle between the two benzene rings is 45.9 (2)°. In the crystal structure, mol-ecules are arranged into sheets parallel to the ac plane and the sheets are stacked along the b axis. This arrangement is stabilized by weak inter-molecular C-H⋯π inter-actions involvi...

The piperidine ring in the title compound, C(21)H(23)NO(2), is in a slightly distorted chair conformation. The dihedral angle between the two benzene rings is 5.6 (4)°. The dihedral angles between the propenone unit and the benzene and meth-oxy-substituted benzene rings are 5.6 (7) and 10.7 (8)°, respectively. Weak inter-molecular C-H⋯O hydrogen bonds and weak C-H⋯π inter-actions contribute to ...

The title compound, C(22)H(22)N(2)OS, exists in a cis conformation with respect to the N=C bond. The cyclo-hexene ring adopts a distorted sofa conformation. The thia-zolidine ring is essentially planar with a maximum deviation of 0.025 (2) Å and forms dihedral angles of 63.50 (7) and 57.52 (6)° with the benzene rings. In the crystal, mol-ecules are linked by C-H⋯O and C-H⋯N hydrogen bonds, gene...