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N-(2,5-Dimethyl-phen-yl)-2-nitro-benzene-sulfonamide.

ABSTRACT: In the crystal structure of the title compound, C14H14N2O4S, the N-H bond is syn to the ortho-nitro group in the sulfonyl benzene ring and anti to the ortho- and syn to the meta-methyl groups in the aniline ring. The mol-ecule is twisted at the S-N bond with a torsion angle of 71.41 (18)°. The dihedral angle between the planes of the benzene rings is 51.07 (8)°. In the crystal, pairs of N-H⋯Osulfonamide hydrogen bonds link the mol-ecules into inversion dimers.

SUBMITTER: Chaithanya U

PROVIDER: S-EPMC3589009 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N-(2,5-Dimethoxy-phen-yl)-4-nitro-benzene-sulfonamide.

Project description:The title compound, C(14)H(14)N(2)O(6)S, is an inter-mediate for the synthesis of ?-3-adrenergic receptor agonists. The two meth-oxy groups are approximately coplanar with the attached benzene ring [C-O-C-C = -2.7?(4) and 9.4?(4)°]. The dihedral angle between the two aromatic rings is 67.16?(12)°. An intra-molecular N-H?O hydrogen bond is observed. In the crystal, mol-ecules are linked into chains along the c axis by C-H?O hydrogen bonds.

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2,4-Dichloro-N-(2,5-dimethyl-phen-yl)benzene-sulfonamide.

Project description:The asymmetric unit of the title compound, C(14)H(13)Cl(2)NO(2)S, contains three independent moleules. The torsion angles of the C-SO2-NH-C segments in the three mol-ecules are 67.5?(2), 83.4?(2) and -77.5?(2)°. The two aromatic rings are tilted relative to each other by 68.8?(1), 64.1?(1) and 68.5?(1)°. The crystal structure features dimers linked by pairs of N-H?O hydrogen bonds.

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Project description:The title compound, C(14)H(14)ClNO(2)S, contains two molecules in the asymmetric unit with different conformations. The C-SO(2)-NH-C torsion angles are 65.3?(2) and 54.6?(2)° and the aromatic rings are tilted relative to each other by 59.3?(1) and 45.8?(1)° in the two mol-ecules. In the crystal, inversion symmetry results in dimers linked by pairs of N-H?O hydrogen bonds for both molecules.

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Project description:In the crystal structure of the title compound, C(15)H(17)NO(2)S, the conformation of the N-C bond in the C-SO(2)-NH-C segment has gauche torsions with respect to the S=O bonds. The mol-ecule is bent at the S atom with a C-SO(2)-NH-C torsion angle of -61.0 (2)°. The dihedral angle between the two aromatic rings is 49.4 (1)°. The crystal structure features inversion-related dimers linked by pairs of N-H⋯O hydrogen bonds.

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2,5-Dichloro-N-(2,3-dimethyl-phen-yl)benzene-sulfonamide.

Project description:In the title compound, C(14)H(13)Cl(2)NO(2)S, the dihedral angle between the aromatic rings is 62.21 (7)° and the C-S-N-C group adopts a gauche conformation [torsion angle = 60.22 (17)°]. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into C(4) chains propagating in [010]. A short inter-molecular Cl⋯O contact of 3.1115 (17) Å is seen.

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N-(2,5-Dimethyl-phen-yl)benzene-sulfonamide.

Project description:In the title compound, C(14)H(15)NO(2)S, the dihedral angle between the aromatic rings is 40.4?(1)° relative to each other. In the crystal, inversion dimers linked by pairs of N-H?O hydrogen bonds occur.

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4-Chloro-N-(2,5-dimethyl-phen-yl)-2-methyl-benzene-sulfonamide.

Project description: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-H⋯O hydrogen bonds link each of the mol-ecules into centrosymmetric dimers.

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N-(2,5-Dichloro-phen-yl)benzene-sulfonamide.

Project description:In the title compound, C(12)H(9)Cl(2)NO(2)S, the conformation of the N-H bond is syn to the 2-chloro group and anti to the 3-chloro group of the aniline benzene ring. The mol-ecule is bent at the S atom with a C-SO(2)-NH-C torsion angle of 66.4?(2)°. The two rings form a dihedral angle of 73.3?(1)° and an intra-molecular N-H?Cl hydrogen bond occurs. The crystal structure features chains linked by N-H?O hydrogen bonds.

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N-(3,4-Dimethyl-phen-yl)benzene-sulfonamide.

Project description:The structure of the title compound, C(14)H(15)NO(2)S, shows the sulfonamide N atom to be approximately perpendicular to the plane through the S-bound benzene ring [the N-S-C-C torsion angle is -87.4?(3)°] and to lie to the opposide side of this ring to the two sulfonamide O atoms. The N-bound benzene ring is splayed out with respect to the rest of the mol-ecule so that overall, the mol-ecule adopts a twisted conformation. The dihedral angle between the two benzene rings is 64.5?(3)°. In the crystal, supra-molecular chains aligned along the b axis are formed via N-H?O hydrogen bonds.

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N-(2,6-Dimethyl-phen-yl)benzene-sulfonamide.

Project description:In the crystal structure of the title compound, C(14)H(15)NO(2)S, the N-H bond is trans to one of the S=O double bonds, similar to what is observed in N-(2-methyl-phen-yl)benzene-sulfonamide and other aryl sulfonamides. The two aromatic rings enclose a dihedral angle of 44.9?(1)°. The mol-ecules are connected by inter-molecular N-H?O hydrogen bonds into chains running along the a axis. An intermolecular C-H?O hydrogen bond is also present.

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