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4-Chloro-N-(3,4,5-trimethoxy-benzyl-idene)aniline.

ABSTRACT: The title compound, C(16)H(16)ClNO(3), is a Schiff base displaying a trans configuration of the C=N double bond. In the crystal structure, inter-molecular C-H?N and bifurcated C-H?(O,O) hydrogen bonds are observed.

SUBMITTER: Dehno Khalaji A

PROVIDER: S-EPMC2968176 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature

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4-Chloro-N-(3,4,5-trimethoxy-benzyl-idene)aniline.

Dehno Khalaji Aliakbar A Asghari Jilla J Fejfarová Karla K Dušek Michal M

Acta crystallographica. Section E, Structure reports online 20090108 Pt 2

The title compound, C(16)H(16)ClNO(3), is a Schiff base displaying a trans configuration of the C=N double bond. In the crystal structure, inter-molecular C-H⋯N and bifurcated C-H⋯(O,O) hydrogen bonds are observed. ...[more]

PMID: 21581869

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4-Bromo-N-(3,4,5-trimethoxy-benzyl-idene)aniline.

Project description:The title compound, C(16)H(16)BrNO(3), adopts an E configuration with respect to the imine C=N bond. The two benzene rings are twisted with respect to each other at an angle of 38.3?(1)°. In the crystal structure, mol-ecules are connected by weak bifurcated C-H?(O, O) hydrogen bonds, forming a helical chain along the b axis.

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(E)-N'-(2-Hydroxy-benzyl-idene)-3,4,5-trimethoxy-benzohydrazide.

Project description:The title compound, C(17)H(18)N(2)O(5), was synthesized from 3,4,5-trimethoxy-benzohydrazide and 2-hydroxy-benzaldehyde. The dihedral angle between the planes of the two benzene rings is 29.9?(2)°. The crystal structure involves intra-molecular O-H?N, and inter-molecular N-H?O and C-H?O hydrogen bonds.

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(E)-Ethyl N'-(3,4,5-trimethoxy-benzyl-idene)hydrazinecarboxyl-ate.

Project description:The mol-ecule of the title compound, C(13)H(18)N(2)O(5), adopts a trans configuration with respect to the C=N bond. The dihedral angle between the benzene ring and the hydrazinecarboxylic acid plane is 49.75?(5)° and an intra-molecular C-H?O inter-action occurs. In the crystal structure, the mol-ecules are linked into a chain along [010] by N-H?O hydrogen bonds, and a C-H?? contact further stabilizes the structure.

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(2E,5E)-2,5-Bis(3,4,5-trimethoxy-benzyl-idene)cyclo-penta-none.

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(E)-N'-(5-Bromo-2-hydroxy-benzyl-idene)-3,4,5-trimethoxy-benzohydrazide.

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N-[(E)-2-Chloro-benzyl-idene]-3-(4-methyl-benzyl-sulfan-yl)-5-(3,4,5-trimethoxy-phen-yl)-4H-1,2,4-triazol-4-amine.

Project description:In the title compound, C(26)H(25)ClN(4)O(3)S, the acyclic imine group exhibits an E configuration. The triazole ring is oriented at dihedral angles of 53.84?(2), 70.77?(1) and 32.59?(3)° with respect to the benzene rings of the 2-chloro-benzyl-idene, 4-methyl-benzyl-sulfanyl and 3,4,5-trimethoxy-phenyl groups, respectively. The crystal packing is stabilized by weak inter-molecular C-H?N, C-H?S and C-H?? inter-actions.

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N'-(4-Fluoro-benzyl-idene)-3,4,5-trimethoxy-benzohydrazide.

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2-Phenyl-4-(3,4,5-trimethoxy-benzyl-idene)-1,3-oxazol-5(4H)-one.

Project description:The title compound, C(19)H(17)NO(5), was synthesized as part of a continuing project involving the structures of oxazolone derivatives. The mol-ecule adopts a Z configuration about the central olefinic bond. The 2-phenyl ring is slightly twisted out of the plane of the oxazolone ring system by 11.2 (2)°. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

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