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Methyl 3-[(E)-(2-hy-droxy-1-naphth-yl)methyl-idene]carbazate.

ABSTRACT: The title compound, C(13)H(12)N(2)O(3), has an E configuration with respect to the C=N bond: the conformation is stabilized by an intramolecular O-H?N hydrogen bond. In the crystal, an N-H?O interaction links the molecules into a C(4) chain along [100].

SUBMITTER: Sheng LQ

PROVIDER: S-EPMC3011666 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature

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Methyl 3-[(E)-(2-hy-droxy-1-naphth-yl)methyl-idene]carbazate.

Sheng Liang-Quan LQ Xu Hua-Jie HJ Du Na-Na NN Jiang Xue-Yue XY

Acta crystallographica. Section E, Structure reports online 20101106 Pt 12

The title compound, C(13)H(12)N(2)O(3), has an E configuration with respect to the C=N bond: the conformation is stabilized by an intramolecular O-H⋯N hydrogen bond. In the crystal, an N-H⋯O interaction links the molecules into a C(4) chain along [100]. ...[more]

PMID: 21589359

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Methyl 3-(2-hy-droxy-benzyl-idene)-2-methyl-dithio-carbazate.

Project description:In the title compound, C(10)H(12)N(2)OS(2), the thione and S-methyl groups are syn. An intra-molecular bifurcated O-H⋯(S,N) hydrogen bond occurs.

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(E)-1-[(2-Hy-droxy-1-naphth-yl)methyl-idene-amino]-imidazolidine-2,4-dione.

Project description:The title compound, C(14)H(11)N(3)O(3), adopts an E or trans configuration with respect to the C=N bond. In the mol-ecule there is an intra-molecular O-H⋯N hydrogen bond involving the hy-droxy substituent at the 2-positon of the naphthalene ring and the adjacent methyl-ene-amino N atom. The mol-ecule is roughly planar, the dihedral angle between the naphthalene and imidazolidine-2,4-dione mean planes being 8.4 (1)°. In the crystal, pairs of N-H⋯O hydrogen bonds link mol-ecules into inversion dimers. These dimers are futher linked via C-H⋯O inter-actions, forming a three-dimensional network.

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(E)-Methyl 3-(3,5-dibromo-2-hy-droxy-benzyl-idene)carbazate.

Project description:The title compound, C(9)H(8)Br(2)N(2)O(3), crystallizes with two very similar independent mol-ecules in the asymmetric unit, each of which adopts a trans configuration with respect to the C=N bond. Intra-molecular O-H⋯N hydrogen bonds are observed in each independent mol-ecule. In the crystal structure, mol-ecules are linked into chains propagating along [010] by N-H⋯O and C-H⋯O hydrogen bonds. In addition, C-H⋯π inter-actions stabilize the structure.

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1-(2-Benzoyl-1-phenyl-eth-yl)-4-[(2-hy-droxy-1-naphth-yl)methyl-idene-amino]-3-methyl-1H-1,2,4-triazole-5(4H)-thione.

Project description:In the title compound, C(29)H(24)N(4)O(2)S, intra-molecular O-H?N hydrogen bonding influences the mol-ecular conform-ation; the naphthol system and triazole ring form a dihedral angle of 3.88?(7)°. In the crystal, ?-? inter-actions between the five- and six-membered rings of neighbouring mol-ecules [centroid-centroid distances = 3.541?(3) and 3.711?(3)?Å] consolidate the crystal packing.

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4-[(Hy-droxy)(4-methyl-phen-yl)methyl-idene]isochroman-1,3-dione.

Project description:In the title compound, C(17)H(12)O(4), the six-membered heterocyclic ring adopts a distorted screw-boat conformation. The mol-ecular structure exhibits an S(6) ring motif, owing to an intra-molecular O-H⋯O hydrogen bond. In the crystal, weak C-H⋯O contacts generate an infinite chain along the c axis. There are also π-π stacking inter-actions between neighbouring isochromanedione benzene rings, with a centroid-centroid distance of 3.755 (1) Å, and C-O⋯π inter-actions with an O⋯centroid distance of 3.964 (2) Å.

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(2Z,N'E)-N'-[(2-Hy-droxy-1-naphth-yl)methyl-idene]furan-2-carbohydrazonic acid.

Project description:In the title compound, C(16)H(12)N(2)O(3), the dihedral angle between the mean planes of the naphthalene ring system and the furan ring is 21.3?(6)°. The mol-ecular structure is stabilized by an intra-molecular O-H?N hydrogen bond, which generates an S(6) graph-set motif.

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(E)-N'-[(2-Hy-droxy-naphthalen-1-yl)methyl-idene]-4-methyl-benzohydrazide.

Project description:In the title compound, C(19)H(16)N(2)O(2), the benzene ring and the naphthyl ring system form a dihedral angle of 8.7 (3)° and an intra-molecular O-H⋯N hydrogen bond generates an S(6) ring. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming C(4) chains propagating in [001].

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1-(2-Benzoyl-1-phenyl-eth-yl)-4-[(2-hy-droxy-1-naphth-yl)methyl-idene-amino]-3-phenyl-1H-1,2,4-triazole-5(4H)-thione.

Project description:In the title mol-ecule, C(34)H(26)N(4)O(2)S, the hy-droxy group is involved in an intra-molecular O-H⋯N hydrogen bond. The naphthyl ring system and the central triazole ring form a dihedral angle of 37.8 (1)°. The crystal packing exhibits weak inter-molecular C-H⋯O and C-H⋯π inter-actions.

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(E)-N'-[(2-Hy-droxy-1-naphthalen-1-yl)methyl-idene]-3-methyl-benzohydrazide.

Project description:In the title compound, C(19)H(16)N(2)O(2), the benzene ring and naphthyl ring system are inclined at a dihedral angle of 16.1?(3)°. An intra-molecular O-H?N hydrogen bond influences the mol-ecular conformation. In the crystal, mol-ecules are linked through N-H?O hydrogen bonds into chains running along the a axis.

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3-Chloro-N'-[(2-hy-droxy-naphthalen-1-yl)methyl-idene]benzohydrazide.

Project description:The title compound, C(18)H(13)ClN(2)O(2), was prepared by the reaction of 2-hy-droxy-1-naphthaldehyde with 3-chloro-benzohydrazide in methanol. An intra-molecular O-H⋯N hydrogen bond influences the mol-ecular conformation; the benzene ring and naphthyl ring system form a dihedral angle of 17.1 (3)°. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains propagated in [101].

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