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2,2-Dichloro-N-(2,5-dichloro-phen-yl)acetamide.

ABSTRACT: The conformation of the N-H bond in the title compound, C(8)H(5)Cl(4)NO, is syn to the 2-chloro substituent and anti to the 5-chloro substituent in the aromatic ring. The bond parameters are similar to those in 2,2-dichloro-N-phenyl-acetamide and other acetanilides. In the crystal structure, the mol-ecules are linked into chains through N-H?O hydrogen bonding.

SUBMITTER: Gowda BT

PROVIDER: S-EPMC2915043 | biostudies-literature | 2007 Dec

REPOSITORIES: biostudies-literature

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2,2-Dichloro-N-(2,5-dichloro-phen-yl)acetamide.

Gowda B Thimme BT Foro Sabine S Fuess Hartmut H

Acta crystallographica. Section E, Structure reports online 20071206 Pt 1

The conformation of the N-H bond in the title compound, C(8)H(5)Cl(4)NO, is syn to the 2-chloro substituent and anti to the 5-chloro substituent in the aromatic ring. The bond parameters are similar to those in 2,2-dichloro-N-phenyl-acetamide and other acetanilides. In the crystal structure, the mol-ecules are linked into chains through N-H⋯O hydrogen bonding. ...[more]

PMID: 21200964

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2-Chloro-N-(2,5-dichloro-phen-yl)acetamide.

Project description:The conformation of the N-H bond in the structure of the title compound, C(8)H(6)Cl(3)NO, is anti to the C=O bond. The N-H H atom shows close intra-molecular N-H?Cl hydrogen bonds with both the ring Cl atom in the ortho position and the side-chain Cl atom. The mol-ecules crystallize in planes parallel to (221).

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2,2-Dichloro-N-(3,4-dimethyl-phen-yl)acetamide.

Project description:In the title compound, C(10)H(11)Cl(2)NO, the N-H bond is syn to the 3-methyl substituent in the aromatic ring, similar to that observed in N-(3,4-dimethyl-phen-yl)acetamide and to the 3-chloro substituent in 2,2-dichloro-N-(3,4-dichloro-phen-yl)acetamide, and contrasting with the anti conformation observed for the 3-methyl substituent in 2,2,2-trichloro-N-(3,4-dimethyl-phen-yl)acetamide. On the other hand, it is anti to the C=O bond. An inter-molecular N-H?O hydrogen bond links mol-ecules into infinite chains along the b axis.

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2,2-Dichloro-N-(3-nitro-phen-yl)acetamide.

Project description:The conformation of the N-H bond in the structure of the title compound (3NPDCA), C(8)H(6)Cl(2)N(2)O(3), is anti to the meta-nitro group, similar to that in the structures of 2-chloro-N-(3-nitro-phen-yl)acetamide (3NPCA) and 2,2,2-trichloro-N-(3-nitro-phen-yl)acetamide (3NPTCA), and the meta-chloro group in 2,2-dichloro-N-(3-chloro-phen-yl)acetamide (3CPDCA). The geometric parameters of 3NPDCA are similar to those of 2,2-dichloro-N-phenyl-acetamide, 3CPDCA, 3NPCA, 3NPTCA and other acetanilides. Inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains running along the b axis.

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2,2-Dichloro-N-(2,3-dimethyl-phen-yl)acetamide.

Project description:The conformation of the N-H bond in the title compound, C(10)H(11)Cl(2)NO, is syn to both the 2- and 3-methyl substituents in the aromatic ring, similar to that of the 2-chloro and 3-chloro substituents in 2,2-dichloro-N-(2,3-dichloro-phen-yl)acetamide and the 2-methyl substituent in 2,2-dichloro-N-(2-methyl-phen-yl)acetamide, but in contrast to the anti conformation observed with respect to the 3-methyl substituent in 2,2-dichloro-N-(3-methyl-phen-yl)acetamide. The bond parameters in the title compound are similar to those in 2,2-dichloro-N-phenyl-acetamide and other acetanilides. The mol-ecules of the title compound are linked into chains through N-H⋯O and C-H⋯O hydrogen bonding.

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

Project description:The structure of the title compound, C(10)H(11)Cl(2)NO, resembles those of 2,2-dichloro-N-phenyl-acetamide, 2,2-dichloro-N-(2-methyl-phen-yl)acetamide, 2,2-dichloro-N-(3-methyl-phen-yl)-acetamide, 2,2-dichloro-N-(4-methyl-phen-yl)acetamide, N-(3,5-dimethyl-phen-yl)acetamide and other acetanilides, with similar bond parameters. The mol-ecules in the title compound are linked into infinite chains through N-H⋯O and C-H⋯O hydrogen bonding.

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Project description:The asymmetric unit of the title compound, C(10)H(7)Cl(2)NO(3), contains two independent mol-ecules. The mol-ecular conformation of each maleamic unit is stabilized by an intra-molecular O-H?O(carbon-yl) hydrogen bond owing to the anti disposition of the participating entities. The mean planes through the benzene ring and the amido group are inclined at angles of 45.7?(1) and 40.8?(1)° in the two mol-ecules. In the crystal, the independent mol-ecules self-associate via N-H?O hydrogen bonds into zigzag ribbons propagating along the a axis. The ribbons are weakly coupled by C-H?? and C-H?O inter-actions.

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N-(2,5-Dichloro-phen-yl)succinamic acid.

Project description:In the title compound, C(10)H(9)Cl(2)NO(3), the conformation of the N-H bond in the amide segment is syn with respect to the ortho-Cl atom and anti to the meta-Cl atom of the benzene ring. In the crystal, inter-molecular O-H?O and N-H?O hydrogen bonds pack the mol-ecules into two types of chains along the a and b axes, respectively, leading to an overall sheet structure. The acid group in the side chain is disordered and was refined using a split model with site-occupation factors of 0.60:0.40.

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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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2,2-Dichloro-N-(4-chloro-phenyl-sulfon-yl)-acetamide.

Project description:In the crystal structure of the title compound (N4CPSDCAA), C(8)H(6)Cl(3)NO(3)S, the conformations of the N-H and C=O bonds in the SO(2)-NH-CO-C group are trans to each other, similar to those observed in 2,2-dichloro-N-(phenyl-sulfon-yl)-acetamide (NPSDCAA), 2,2-dichloro-N-(4-methyl-phenyl-sulfon-yl)acetamide (N4MPSDCAA) and N-(4-chloro-phenyl-sulfon-yl)-2,2,2-trimethyl-acetamide (N4CPSTMAA), with similar bond parameters. The -SNHCOC- unit in N4CPSDCAA is essentially planar and makes a dihedral angle of 79.67 (5)° with the benzene ring, comparable to 79.75 (8)° in NPSDCAA, 81.02 (5)° in N4MPSDCAA and 82.2 (1)° in N4CPSTMAA. The mol-ecules in N4CPSDCAA are linked into layers parallel to the (001) plane by inter-molecular N-H⋯O hydrogen bonds.

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