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(Z)-4-(2-Hy-droxy-anilino)pent-3-en-2-one.

ABSTRACT: In the title compound, C(11)H(13)NO(2), the dihedral angle between the planes defined by the 2-hy-droxy-phenyl-amino group and the pent-3-en-2-one mean plane [maximum deviations = 0.0275 (19) and 0.054 (2) Å, respectively] is 31.01 (10)°. There are intra-molecular bifurcated N-H⋯(O,O) hydrogen bonds involving the amine NH group and the adjacent carbonyl and hy-droxy O atoms. In the crystal, mol-ecules are linked via O-H⋯O hydrogen bonds, forming chains propagating along [100].

SUBMITTER: Fatiha B

PROVIDER: S-EPMC3393989 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-[(4-Chloro-phen-yl)(2-hy-droxy-5-oxo-cyclo-pent-1-en-1-yl)meth-yl]-3-hy-droxy-cyclo-pent-2-en-1-one.

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4-(2,3-Dimethyl-anilino)pent-3-en-2-one.

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Project description:In the mol-ecule of the title compound, C(14)H(17)NO(2), the dihedral angle formed by the mean planes through the indan ring system and the amino-pentenone fragment is 83.26 (13)°. An intra-molecular N-H⋯O hydrogen bond is observed. In the crystal, mol-ecules are linked into one-dimensional chains extending along the [010] direction via O-H⋯O and C-H⋯O hydrogen bonds.

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Monoclinic form of (Z)-1-ferrocenyl-3-(3-hy-droxy-anilino)but-2-en-1-one.

Project description:The title compound, [Fe(C(5)H(5))(C(15)H(14)NO(2))], is a monoclinic polymorph of the previously reported triclinic form [Shi et al. (2006 ?). Acta Cryst. C62, m407-m410]. The polymorphs feature the same strong intra-molecular N-H?O=C hydrogen bonds, but show different packing modes. The mol-ecules in the monoclinic form associate into double chains via O-H?O=C and (Cp)C-H?O-H inter-actions.

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1-[(4-Hy-droxy-anilino)methyl-idene]naphthalen-2(1H)-one.

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Project description:The asymmetric unit of the title compound, C6H5Cl2N·2C11H11Cl2NO, is composed of one mol-ecule of an enamino-ketone [i.e. -(2,6-dichloro-phenyl-amino)-pent-3-en-2-one] and half a mol-ecule of 2,6-dichloro-aniline, the whole mol-ecule of the latter component being generated by twofold rotational symmetry. In this latter mol-ecule, there are two intra-molecular N-H?Cl contacts. In the enamino-ketone mol-ecule, there is an N-H?O hydrogen bond of moderate strength, and the dihedral angle between the benzene ring and penta-none fragment [C-C(-N)=C-C(=O)-C; planar within 0.005?(1)?Å] is 81.85?(7)°. In the crystal, two mol-ecules of the enamino-ketone are bridged by a mol-ecule of 2,6-dichloro-aniline via N-H?O hydrogen bonds of moderate strength. There are also ?-? inter-actions present, involving the benzene rings of inversion-related enamino-ketone mol-ecules [centroid-centroid distance = 3.724?(4)?Å].

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