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Ethyl 3-(4-hydroxy-phen-oxy)-2-(4-methoxy-phen-yl)acrylate.

ABSTRACT: In the title compound, C(18)H(18)O(5), the dihedral angle between the two benzene rings is 55.2 (3)°. The ethyl acrylate linkage is planar and forms dihedral angles of 21.3 (3) and 41.0 (3)°, respectively, with the hydroxy-phenyl and methoxy-phenyl rings. In the crystal structure, mol-ecules are linked into zigzag chains along the b axis by O-H⋯O hydrogen bonds.

SUBMITTER: Hou J

PROVIDER: S-EPMC2959932 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Ethyl 3-(2,4-difluoro-phen-oxy)-2-(4-methoxy-phen-yl)acrylate.

Project description:In the title mol-ecule, C(18)H(16)F(2)O(4), the two benzene rings form a dihedral angle of 55.2?(2)°. In the crystal structure, weak inter-molecular C-H?O hydrogen bonds link the mol-ecules into chains propagating along the c axis.

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Ethyl 2-(4-chloro-phen-yl)-3-(3,5-dimethoxy-phen-oxy)acrylate.

Project description:The title compound, C(19)H(19)ClO(5), displays a dihedral angle of 74.7 (3)° between the mean planes of the 4-chloro-phenyl and phenol rings.

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(E)-Ethyl 3-(2-fluoro-anilino)-2-(4-methoxy-phen-yl)acrylate.

Project description:The title compound, C(18)H(18)FNO(3), consists of three individually planar subunits, namely two substituted benzene rings and one amino-acrylate group. The dihedral angle between the two benzene rings is 47.48?(8)°. The amino-acrylate group forms dihedral angles of 57.95?(7) and 11.27?(6)° with the methoxy-phenyl and fluorophenyl rings, respectively.

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(Z)-Ethyl 3-(2,4-difluoro-anilino)-2-(4-methoxy-phen-yl)acrylate.

Project description:The title compound, C(18)H(17)F(2)NO(3), consists of three individually planar subunits, namely two benzene rings and one amino-acrylate group. The amino-acrylate group forms dihedral angles of 5.92 (7) and 50.21 (6)° with the difluoro and methoxy benzene rings, respectively. The dihedral angle between the two benzene rings is 55.25 (7)°. The mol-ecules exhibit intra-molecular N-H⋯O and N-H⋯F inter-actions and form a three-dimensional network via inter-molecular C-H⋯O and C-H⋯π hydrogen bonds.

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Ethyl (2E)-2-cyano-3-(4-meth-oxy-phen-yl)acrylate.

Project description:In the title compound, C13H13NO3, the conformation across the C=C bond is synperiplanar, the torsion angle of the segment C(ring)-C=C-C(N) being 3.2?(5)°. In the crystal, mol-ecules are linked into inversion dimers, arranged in a zigzag pattern, through two C-H?O inter-actions generating R 2 (2)(10) and R 2 (2)(14) motifs. These dimers are arranged in a zigzag pattern in the crystal structure. The mol-ecules are further linked along the c axis through weak C-H?? inter-actions, and weak ??? inter-actions [centroid-centroid separation = 3.9986?(17)?Å] are also observed.

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(E)-N'-[1-(2-Hydroxy-phen-yl)ethyl-idene]-3-methoxy-benzohydrazide.

Project description:In the title compound, C(16)H(16)N(2)O(3), the benzohydrazide group is not planar and the mol-ecule exists in a trans configuration with respect to the methyl-idene unit. The dihedral angle between the two substituted benzene rings is 26.9 (2)°. In the crystal structure, the mol-ecular packing is stabilized by intra-molecular O-H⋯N and inter-molecular N-H⋯O hydrogen bonds. The inter-molecular hydrogen bonding forms chains parallel to the b axis.

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(E)-Methyl 3-(4-ethyl-phen-yl)-2-{2-[(E)-(hy-droxy-imino)-meth-yl]phen-oxy-meth-yl}acrylate.

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{2-Hydr-oxy-3-[4-(2-methoxy-ethyl)-phen-oxy]prop-yl}isopropyl-ammonium hemisuccinate.

Project description:Metoprolol, a widely used adrenoreceptor blocking drug, is commonly administered as the succinate or tartrate salt. The structure of metoprolol succinate, C(15)H(26)NO(3) (+)·0.5C(4)H(4)O(4) (2-), is characterized by the presence of ribbons in which cations, generated by N-protonation of the metoprolol mol-ecules, are hydrogen bonded to succinate anions. The dicarboxylic acid transfers its H atoms to two metoprolol mol-ecules; the asymmetric unit contains one cation and half an anion, the latter possessing twofold rotational symmetry. There are localized nets of O-H?O and N-H?O hydrogen bonds along a ribbon, within centrosymmetric arrangements formed by pairs of metoprolol cations and pairs of anions, each of the latter contributing with one of its carboxyl groups to the localized net. This arrangement is repeated along the ribbon by the operation of the twofold axis bis-ecting the anion, as well as by the lattice translation.

| S-EPMC2969523 | biostudies-literature

Methyl 3,5-bis-[(4-hydroxy-methyl-2-methoxy-phen-oxy)meth-yl]benzoate.

Project description:In the title compound, C(26)H(28)O(8), the central aromatic ring forms dihedral angles of 24.32?(11) and 80.19?(7)° with the two adjoining vanillyl alcohol rings. In the crystal, O-H?O hydrogen bonds connect the mol-ecules, forming a hydrogen-bonded sheet-like motif extended in the ab plane.

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(E)-Ethyl 3-(4-fluoro-anilino)-2-(4-methoxy-phen-yl)acrylate.

Project description:In the title compound, C(18)H(18)FNO(3), the dihedral angles between the two benzene rings and the plane through the acrylate group and the fluoro-phenyl ring are 61.58?(8) and 13.33?(9)°, respectively. Mol-ecules are linked into ribbons through C-H?O and N-H?O hydrogen bonds, and further linked by C-H?? inter-actions, forming a three-dimensional network.

| S-EPMC2959879 | biostudies-other

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