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.

In the title salt, C(12)H(12)N(3) (+)·C(6)H(2)N(3)O(7) (-), the diazenyl group of the 4-(phenyl-diazen-yl)aniline mol-ecule is protonated and forms a hydrogen bond with the phenolate O-atom acceptor of the picrate anion. Structure extension occurs through two symmetrical inter-ion three-centre amine N-H⋯O,O'(nitro) hydrogen-bonding associations [graph set R(1) (2)(4)], giving a convoluted two-d...

Pyrazino compounds such as quinoxalines are 1,4-diazines with widespread occurrence in nature. Quinolin-8-amines are isomerically related and valuable scaffolds in organic synthesis. Herein, we present intramolecular main group metal Lewis acid catalyzed formal hydroamination as well as hydroarylation methodology using mono-propargylated aromatic ortho-diamines. The annulations can be conducted...

In the title compound, C(17)H(17)NO(2), the dihedral angle between the two benzene rings is 6.9 (1)°. The meth-oxy group is twisted slightly away from the aniline ring [C-O-C-C = 12.2 (3)°]. An intra-molecular N-H⋯O hydrogen bond generating an S(6) ring is observed. The crystal packing is stabilized by weak C-H⋯O and C-H⋯π inter-actions, forming a two-dimensional network.

In the title picrate salt of a dihalogenated aniline derivative, C(6)H(6)ClF(+)·C(6)H(2)N(3)O(7) (-), the intra-cyclic C-C-C angles in the picrate anion cover a broad range [111.95 (12)-125.38 (13)°], while those in the aromatic cation span a much narrower range [118.25 (14)-122.33 (13)°]. In the crystal, classical N-H⋯O hydrogen bonds, as well as C-H⋯O contacts, connect the ions into layers pa...

o-Benzenedisulfonimide (OBS) has efficiently catalysed the one-pot three-component reaction of ketones and aromatic amines with trimethylsilyl cyanide (TMSCN) giving the corresponding α-amino nitriles in excellent yields (23 examples; average yield 85%). Reaction conditions were very simple, green and efficient. Theoretical calculations have allowed us to explain the mechanism of this reaction ...

In the title compound, C6H4BrN3O4, the dihedral angles between the nitro groups and the aniline ring are 2.04 (3) and 1.18 (4)°, respectively. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds and weak side-on C-Br⋯π inter-actions [3.5024 (12) Å] link adjacent mol-ecules, forming a three-dimensional network. A close O⋯Br contact [3.259 (2) Å] may also add additional stability.

In the title compound, C(12)H(7)Cl(4)NO(2)S, the conformation of the N-C bond in the C-SO(2)-NH-C segment is gauche with respect to the S=O bonds. Further, the N-H bond in the C-SO(2)-NH-C segment is syn with respect to the ortho-Cl atoms in the aniline and sulfonyl benzene rings. The C-SO(2)-NH-C torsion angle is -51.98 (18)°. The sulfonyl and aniline benzene rings are tilted by 67.7 (1)° rela...

The reaction between the benzohydroxamate anion (BHO(-)) and bis(2,4-dinitrophenyl)phosphate (BDNPP) has been examined kinetically, and the products were characterized by mass and NMR spectroscopy. The nucleophilic attack of BHO(-) follows two reaction paths: (i) at phosphorus, giving an unstable intermediate that undergoes a Lossen rearrangement to phenyl isocyanate, aniline, diphenylurea, and...

The asymmetric unit of the title compound, C(14)H(13)NO, contains four mol-ecules, which are linked through N-H⋯O hydrogen bonds into two symmetry-independent chains running parallel to [001] and [101]. The N-H and C=O bonds of the amide groups are trans oriented in all four mol-ecules. The mol-ecules are not planar and both aromatic rings are twisted strongly relative to the plane of the amide...