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N-(3,4-Difluoro-phen-yl)-3,4,5-trimethoxy-benzamide.

ABSTRACT: In the title amide, C(16)H(15)F(2)NO(4), the dihedral angle between the benzene rings is 2.33?(15)°. Mol-ecules are linked in the crystal structure by N-H?O hydrogen bonding involving N-H and C=O groups of the amide function, leading to a supra-molecular chain along [100].

SUBMITTER: Choi H

PROVIDER: S-EPMC2979189 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature

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N-(3,4-Difluoro-phen-yl)-3,4,5-trimethoxy-benzamide.

Choi Hyeong H Han Byung Hee BH Lee Taewoo T Kang Sung Kwon SK Sung Chang Keun CK

Acta crystallographica. Section E, Structure reports online 20100424 Pt 5

In the title amide, C(16)H(15)F(2)NO(4), the dihedral angle between the benzene rings is 2.33 (15)°. Mol-ecules are linked in the crystal structure by N-H⋯O hydrogen bonding involving N-H and C=O groups of the amide function, leading to a supra-molecular chain along [100]. ...[more]

PMID: 21579190

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N-(3-Bromo-phen-yl)-3,4,5-trimethoxy-benzamide.

Project description:In the title compound, C(16)H(16)BrNO(4), the dihedral between the planes of the aromatic rings is 7.74?(18)°. The amide group is tilted with respect to the bromo- and meth-oxy-substituted aromatic rings by 36.3?(8) and 35.2?(8)°, respectively. The meta-meth-oxy groups are essentially in-plane with the aromatic ring [dihedral angles CH(3)-O-C-C = -4.6?(4) and -2.5?(4)°]. The para-meth-oxy group is markedly displaced from the ring plane [dihedral angle CH(3)-O-C-C = -72.5?(4)°]. The crystal packing is stabilized by N-H?O hydrogen bonds linking the mol-ecules into chains running along the b axis.

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N-(4-Chloro-phen-yl)-3,4,5-trimethoxy-benzamide.

Project description:In the title compound, C(16)H(16)ClNO(4), the dihedral angle between the two aromatic rings is 67.33 (8)°. The crystal packing shows strong inter-molecular N-H⋯O hydrogen bonds that link the mol-ecules to form chains along [01].

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6-(4-Methyl-phen-yl)-3-(3,4,5-trimethoxy-phen-yl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole.

Project description:In the mol-ecule of the title compound, C(19)H(18)N(4)O(3)S, the central heterocylic ring system is oriented with respect to the trimethoxy-phenyl and 4-methyl-phenyl rings at dihedral angles of 1.1?(5) and 15.1?(5)°, respectively. The dihedral angle between the two benzene rings is 16.1?(4)°. In the crystal structure, mol-ecules are linked by inter-molecular C-H?O hydrogen bonds, and an intra-molecular C-H?N inter-action also occurs.

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Project description:The title compound, C(19)H(18)Cl(2)N(2)O(5), was synthesized by the reaction of N'-(3,4-dichloro-benzyl-idene)-3,4,5-trimethoxy-benzo-hydrazide and acetic anhydride. The oxadiazole ring makes dihedral angles of 82.82 (7) and 9.92 (7)° with the 3,4-dichloro-benzene and the 3,4,5-trimethoxy-benzene ring planes, respectively. The crystal structure is stabilized by inter-molecular C-H⋯ O and C-H⋯ N hydrogen bonds. Intra-molecular C-H⋯O and C-H⋯N hydrogen bonds are also present.

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6-(2-Methyl-phen-yl)-3-(3,4,5-trimethoxy-phen-yl)-1,2,4-triazolo[3,4-b][1,3,4]thia-diazole.

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2-(3,4,5-Trimethoxy-phen-yl)-1H-benzimidazole.

Project description:In the title compound, C(16)H(16)N(2)O(3), the dihedral angle between the mean planes of the aromatic ring systems is 30.90 (15)°. In the crystal structure, the mol-ecules form [010] chains by way of N-H⋯N hydrogen bonds.

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6-(3-Pyrid-yl)-3-(3,4,5-trimethoxy-phen-yl)-1,2,4-triazolo[3,4-b][1,3,4]thia-diazole.

Project description:In the mol-ecule of the title compound, C(17)H(15)N(5)O(3)S, the planar central heterocylic ring system is oriented with respect to the benzene and pyridine rings at dihedral angles of 6.61 (3) and 19.22 (3)°, respectively. An intra-molecular C-H⋯N hydrogen bond results in the formation of a six-membered ring, adopting a flattened boat conformation. In the crystal structure, inter-molecular C-H⋯N hydrogen bonds link the mol-ecules.

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6-(4-Pyrid-yl)-3-(3,4,5-trimethoxy-phen-yl)-1,2,4-triazolo[3,4-b][1,3,4]thia-diazole.

Project description:In the mol-ecule of the title compound, C(17)H(15)N(5)O(3)S, the planar central heterocylic ring system is oriented at dihedral angles of 5.32 (4) and 9.41 (4)°, respectively with respect to trimethoxy-phenyl and pyridine rings. Intra-molecular C-H⋯N, C-H⋯O and C-H⋯S hydrogen bonds result in the formation of a nearly planar six-membered ring, which is oriented at a dihedral angle of 3.07 (5)° with respect to the central heterocylic ring system, and non-planar six- and five-membered rings having twist and envelope conformations, respectively. In the crystal structure, inter-molecular C-H⋯N and C-H⋯O hydrogen bonds link the mol-ecules. There is a C-H⋯π contact between the pyridine ring and a methyl group and a π-π contact between the central heterocylic ring system and the trimethoxy-phenyl ring [centroid-centroid distance = 3.758 (1) Å].

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N-Cyclo-hexyl-3,4,5-trimethoxy-benzamide.

Project description:The 3,5-meth-oxy groups in the title compound, C(16)H(23)NO(4), are almost coplanar with the aromatic ring, whereas the 4-meth-oxy group is bent out of this plane. The three CH(3)-O-C-C torsion angles are -1.51?(18), 0.73?(19) and 75.33?(15)°. The cyclo-hexane ring adopts a chair conformation. In the crystal, mol-ecules are connected by inter-molecular N-H?O hydrogen bonds into chains running along the b axis.

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