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

ABSTRACT: 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.

SUBMITTER: Chen W

PROVIDER: S-EPMC2959914 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-[(4-Ethyl-phen-yl)imino-meth-yl]-3,5-dimethoxy-phenol.

Project description:The title compound, C(17)H(19)NO(3), adopts the phenol-imine tautomeric form, with a resonance-assisted O-H?N intra-molecular hydrogen bond [O?N = 2.551?(3)?Å]. The dihedral angle between the two benzene rings is 45.42?(7)°. The two meth-oxy groups are coplanar with the attached benzene ring [C-O-C-C torsion angles = -1.1?(5) and 3.2?(4)°].

| S-EPMC2968664 | biostudies-literature

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.

| S-EPMC2960068 | biostudies-literature

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

Project description: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.

| S-EPMC2959932 | biostudies-literature

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.

| S-EPMC3884285 | biostudies-literature

Methyl 2-[2-(6-chloro-pyrimidin-4-yl-oxy)phen-yl]-3,3-dimethoxy-propanoate.

Project description:In the title compound, C(16)H(17)ClN(2)O(5), the dihedral angle between the aromatic rings is 77.36?(4)°. An intra-molecular C-H?O inter-action results in the formation of a planar [r.m.s. deviation = 0.103 (2) Å] five-membered ring, which is oriented at a dihedral angle of 4.84?(4)° with respect to the adjacent benzene ring. In the crystal structure, weak intermolecular C-H?? inter-actions are found.

| S-EPMC2970010 | biostudies-literature

Crystal structures of methyl (E)-3-(2-chloro-phen-yl)-2-({2-[(E)-2-nitro-vin-yl]phen-oxy}meth-yl)acrylate and methyl (E)-2-({4-chloro-2-[(E)-2-nitro-vin-yl]phen-oxy}meth-yl)-3-(2-chloro-phen-yl)acrylate.

Project description:The title compounds, C19H16ClNO5, (I), and C19H15Cl2NO5, (II), both crystallize in the monoclinic space group P21/n. They differ essentially in the orientation of the methyl acetate group, with the C=O bond directed towards the NO2 group in (I) but away from it in (II). In compound (I), the mean plane of the methyl acrylate unit is planar, with a maximum deviation of 0.0044 (2) Å for the methyl C atom, while in (II) this deviation is 0.0147 Å. The inter-planar angles between the two aromatic rings are 74.87 (9) and 75.65 (2)° for compounds (I) and (II), respectively. In both compounds, the methyl acrylate and nitro-vinyl groups each adopt an E conformation about the C=C bond. In the crystal of (I), mol-ecules are linked by C-H⋯O hydrogen bonds forming chains along the b axis. The chains are linked via C-H⋯Cl hydrogen bonds, forming sheets parallel to the ab plane. The sheets are linked via C-H⋯π inter-actions, forming a three-dimensional structure. In the crystal of (II), mol-ecules are linked by pairs of C-H⋯O hydrogen bonds, forming inversion dimers with an R 2 (2)(30) ring motif. The dimers are linked via C-H⋯O hydrogen bonds, forming sheets parallel to the ac plane and enclosing R 4 (4)(28) ring motifs. The sheets are linked via parallel slipped π-π inter-actions (inter-centroid distances are both ca 3.86 Å), forming a three-dimensional structure.

| S-EPMC4770962 | biostudies-literature

1-(4-Hydr-oxy-3,5-dimethoxy-phen-yl)ethanone.

Project description:In the title mol-ecule, C(10)H(12)O(4), the non-H atoms are essentially coplanar (r.m.s. deviation = 0.033?Å). In the crystal, mol-ecules are linked into chains along [001] by O-H?O hydrogen bonds.

| S-EPMC2971891 | biostudies-other

(S)-Ethyl 2-[4-(6-chloro-quinoxalin-2-yl-oxy)phen-oxy]propanoate.

Project description:In the mol-ecule of the title compound, C(19)H(17)ClN(2)O(4), the quinoxaline ring system is planar [maximum deviation = 0.013 (3) Å] and oriented at a dihedral angle of 80.18 (3)° with respect to the benzene ring. In the crystal structure, inter-molecular C-H⋯N inter-actions link mol-ecules into chains. π-π contacts between the quinoxaline systems [centroid-centroid distance = 3.654 (1) Å] may further stabilize the structure.

| S-EPMC2969970 | biostudies-literature

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

Project description:In the title compound, C(20)H(21)NO(4), the two benzene rings are almost perpendicular to each other, making a dihedral angle of 86.1?(7)°. The hy-droxy-ethanimine group is essentially coplanar with the benzene ring, the largest deviation from the mean plane of the hy-droxy-ethanimine [C=N-OH] group being 0.011?(1)?Å for the O atom. An intra-molecular C-H?O hydrogen bond occurs. The mol-ecules are linked into cyclic centrosymmetric R(2) (2)(6) dimers via O-H?N hydrogen bonds. Inter-molecular C-H?O hydrogen bonds link the mol-ecules, forming a C(8) chain along the a axis. The crystal packing is further stabilized by C-H?? inter-actions.

| S-EPMC3201344 | biostudies-literature

(Z)-Ethyl 3-(4-chloro-benzamido)-2-cyano-3-(4-fluoro-phen-yl)acrylate.

Project description:The title compound, C(19)H(14)ClFN(2)O(3), was prepared by the reaction of ethyl (Z)-3-amino-2-cyano-3-(4-fluoro-phen-yl)acrylate and 4-chloro-benzoyl chloride. The dihedral angle between the chloro-benzene and fluoro-benzene rings is 66.18 (19)°. In addition to an intra-molecular N-H⋯O hydrogen bond, there are inter-molecular C-H⋯O and C-H⋯N hydrogen bonding inter-actions, which stabilize the crystal structure.

| S-EPMC2967997 | biostudies-literature

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