There are two mol-ecules in the asymmetric unit of the title compound, C(13)H(12)ClNO(2)S, with similar conformations. The orientations of the ortho-methyl groups in the sulfonyl benzene rings are in the direction of the N-H bonds of the sulfonamide groups. In the crystal, the mol-ecules are each linked into centrosymmetric dimers through N-H⋯O hydrogen bonds and packed into a layered structure...

In the title compound, C(14)H(12)ClNO, the ortho-Cl atom in the benzoyl ring is positioned syn to the C=O bond. The benzoyl and aniline benzene rings are tilted relative to each other by 82.8 (1)°. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into infinite chains running along the c-axis direction.

The asymmetric unit of the title compound, C(15)H(16)ClNO(2)S, contains three independent moleules. The conformation of the N-H bonds are anti to the ortho-methyl groups of the sulfonyl benzene rings in all the mol-ecules. The sulfonyl and the aniline benzene rings are tilted relative to each other by 43.0 (2), 37.0 (2) and by 46.0 (1)° in the three mol-ecules. In the crystal, inter-molecular N...

The two aromatic rings in the title compound, C(10)H(8)ClN(3), open the angle at the planar N atom to 128.00 (12)°. The amino N atom of one mol-ecule forms a hydrogen bond to the 1-N atom of an adjacent pyrimidyl ring, generating a hydrogen-bonded dimer.

In the title compound, C(10)H(8)ClN(3), the dihedral angle between the aromatic rings is 43.0 (1)° and the bridging C-N-C angle is 128.19 (16)°. The amino N atom of one mol-ecule forms a hydrogen bond to the 1-N atom of an adjacent pyrazinyl ring, generating an inversion dimer.

The asymmetric unit of the title compound, C(14)H(11)ClN(2)O(2)·H(2)O, contains a Schiff base mol-ecule and a water mol-ecule of crystallization. The dihedral angle between the two aromatic rings is 27.3 (4)°. In the crystal structure, mol-ecules are linked into a two-dimensional network parallel to the bc plane by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds involving the water mol-ecules.

The title Schiff base compound, C(14)H(10)ClN(3)O(3), exists in a trans configuration with respect to the C=N bond. The dihedral angle between the two benzene rings is 15.9 (2)°. In the crystal, the mol-ecules are linked into chains along [101] by inter-molecular N-H⋯O hydrogen bonds.

The title compound, C(14)H(10)Cl(2)N(2)O, was synthesized by the reaction of 2-chloro-benzaldehyde with an equimolar quantity of 4-chloro-benzohydrazide in methanol. The mol-ecule displays an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 8.6 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chain...

The title compound, C(7)H(7)ClN(2)O(4)S, is of inter-est as a precursor to biologically active substituted quinolines. Its structure resembles those of the previously reported N-phenyl-methane sulfonamide and its 4-nitro, 4-fluoro and 4-bromo derivatives, with slightly different geometric parameters. An intra-molecular N-H⋯O hydrogen bond gives rise to a six-membered ring. Inter-molecular C-H⋯O...

The asymmetric unit of the title compound, C(15)H(16)ClNO(2)S, contains two independent moleules. The conformation of the N-H bonds are anti to the ortho-methyl groups in the sulfonyl benzene rings of both the mol-ecules, while the N-H bonds are anti to the ortho- and meta-methyl groups in the aniline ring of one of the mol-ecules and syn in the other. Furthermore, the torsion angles of the C-S...