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Methyl 4-benz-yloxy-2-hy-droxy-benzoate.

ABSTRACT: In the title compound, C15H14O4, the dihedral angle between the benzene rings is 67.18 (8)°. The Ca-Cm-O-Ca (a = aromatic and m = methyl-ene) torsion angle is 172.6 (3)° and an intra-molecular O-H⋯O hydrogen bond generates an S(6) ring. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds into zigzag chains propagating in [001] and C-H⋯π inter-actions also occur.

SUBMITTER: Palakshamurthy BS

PROVIDER: S-EPMC3588978 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(E)-2-(4-Benz-yloxy-2-hy-droxy-benzyl-idene)-N-methyl-hydrazinecarbo-thio-amide.

Project description:The mol-ecule of the title compound, C16H17N3O2S, adopts an E conformation with respect to the azomethine C=N bond. The hydrazinecarbo-thio-amide fragment is close to planar, with a largest deviation from the least-squares plane of 0.079 (2) Å for the hydrazide N atom. This fragment forms a dihedral angle of 9.43 (9)° with the central benzene ring. The benzene rings are inclined to one another by 67.55 (12)°. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯N hydrogen bond involving the azomethine N atom. In the crystal, mol-ecules are linked through weak N-H⋯S and N-H⋯O hydrogen bonds into double ribbons along [010]. The crystal packing also features C-H⋯π inter-actions.

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Project description:In the title compound, C(31)H(38)O(3), the central benzene ring makes dihedral angles of 66.06?(9) and 65.21?(8)°, respectively, with the benzyl and 4-decyl-phenyl rings.

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Methyl 5-bromo-2-hy-droxy-benzoate.

Project description:The title compound, C(8)H(7)BrO(3), is almost planar (r.m.s. deviation for the non-H atoms = 0.055 Å). In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into C(6) chains propagating in [010]. Very weak aromatic π-π inter-actions [centroid-centroid distances = 3.984 (5) and 3.982 (5) Å] also occur.

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4-Methyl-pyridinium 4-hy-droxy-benzoate.

Project description:In the crystal structure of the title salt, C(6)H(8)N(+)·C(7)H(5)O(3) (-), the anions and cations are linked by classical N-H⋯O hydrogen bonds. The anions are connected by pairs of C-H⋯O hydrogen bonds into inversion dimers and further linked by classical O-H⋯O hydrogen bonds. Weak π-π inter-actions [centroid-centroid distances = 3.740 (3) and 3.855 (3) Å] also occur. The dihedral angle between the CO(2) (-) group and the benzene ring to which it is attached is 20.95 (8)°.

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N'-[(E)-4-Benz-yloxy-2-hy-droxy-benzyl-idene]benzohydrazide.

Project description:The title compound, C(21)H(18)N(2)O(3), exists in the E conformation with respect to the azomethane C=N double bond. The central benzene ring is almost coplanar with one of the substituent benzene rings [dihedral angle = 1.74 (5)°] and is approximately orthogonal to the other benzene ring of the mol-ecule [dihedral angle = 86.61 (7)°]. An intra-molecular O-H⋯N hydrogen bond occurs. The crystal packing is dominated by N-H⋯O hydrogen bonds, which lead to an infinite chain running parallel to [010].

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(7R,8S,9S,12S)-1-Benz-yloxy-13,14-didehydro-12-hy-droxy-2,13-dimeth-oxy-N-methyl-morphinane.

Project description:In the title compound, C(26)H(31)NO(4), a sinomenine derivative, the angle between the two aromatic rings is 53.34?(4)°. The N-containing ring is in a chair conformation, while the other two non-planar rings are in a half-boat conformation. In the crystal, mol-ecules are linked by O-H?N inter-actions into a C(8) chain along [100].

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1-[4-(3,5-Difluoro-benz-yloxy)-2-hy-droxy-phen-yl]ethanone.

Project description:The title compound, C(15)H(12)F(2)O(3), has been obtained by the reaction of 2,4-dihy-droxy-lacetonephenone, potassium carbonate and 3,5-difluoro-benzyl bromide. The hy-droxy group is involved in an intra-molecular O-H⋯O hydrogen bond in each of the two independent mol-ecules in the asymmetric unit. The dihedral angle between the aromatic rings is 0.5 (2)° in one molecule and 1.9 (2)° in the other. In the crystal, weak C-H⋯O inter-actions link the mol-ecules into tetra-meric units aligned perpendicular to b.

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2-(2,4-Dinitro-benz-yl)pyridinium 2-hy-droxy-3,5-dinitro-benzoate.

Project description:In the structure of the title salt, C(12)H(10)N(3)O(4) (+)·C(7)H(3)N(2)O(7) (-), the cations and the anions are linked by a single N(+)-H?O(carbox-yl) hydrogen bond, the discrete cation-anion unit having no inter-molecular associations other than weak cation-anion aromatic ring ?-? inter-actions [ring centroid separation = 3.7320?(14)?Å] and a number of weak inter-unit aromatic C-H?O contacts. An intramolecular C-H?O hydrox-yl-carboxyl hydrogen bond occurs in the anion.

| S-EPMC3007337 | biostudies-literature

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