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(E)-Methyl 2-[(4-bromo-2-formyl-phen-oxy)meth-yl]-3-phenyl-acrylate.

ABSTRACT: The C=C double bond in the title compound, C(18)H(15)BrO(4), adopts an E configuration. The two rings are almost orthogonal to each other, making a dihedral angle of 82.8 (1)°. An intra-molecular C-H⋯O hydrogen bond occurs. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds.

SUBMITTER: Anuradha T

PROVIDER: S-EPMC3238972 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(E)-Methyl 2-[(2-formyl-6-meth-oxy-phen-oxy)meth-yl]-3-phenyl-acrylate.

Project description:The title compound, C(19)H(18)O(5), crystallizes with two independent mol-ecules (A and B) in an asymmetric unit in both of which the two aromatic rings are in a bis-ectional orientation as evidenced by the dihedral angle between them [41.7?(1)° in mol-ecule A and 35.6?(1)° in mol-ecule B]. Both mol-ecules adopt an E configuration with respect to the C=C bond. An intra-molecular C-H?O hydrogen-bond occurs in mol-ecule A. The crystal packing features inter-molecular C-H?O inter-actions.

| S-EPMC3254561 | biostudies-literature

(Z)-Methyl 2-[(4-bromo-2-formyl-phen-oxy)meth-yl]-3-o-tolyl-acrylate.

Project description:In the title compound, C(19)H(17)BrO(4), the dihedral angle between the two benzene rings is 82.1?(1)°. The mol-ecular structure is stabilized by an intra-molecular C-H?O hydrogen bond which generates an S(7) ring motif. The crystal packing is stabilized by inter-molecular C-H?O hydrogen bonds and C-H?? inter-actions. Inter-molecular C-H?O inter-actions are involved in the formation of centrosymmetric R(2) (2)(16) dimers, which are connected into supra-molecular tapes running along the [100] direction.

| S-EPMC3201264 | biostudies-literature

(Z)-Methyl 3-(2,4-dichloro-phen-yl)-2-[(2-formyl-phen-oxy)meth-yl]acrylate.

Project description:In the title compound, C(18)H(14)Cl(2)O(4), the mean planes of the methyl acrylate unit and the phenyl ring of the benzaldehyde are approximately orthogonal to each other, making a dihedral angle of 83.31?(6)°. The O atom of the aldehyde group is displaced significantly from the phenyl ring plane by 0.226?(2)?Å. The methyl acrylate group adopts an E conformation. In the crystal, inversion dimers linked by pairs of C-H?O hydrogen bonds generate R(2) (2)(24) loops.

| S-EPMC3201315 | biostudies-literature

Methyl (Z)-2-[(4-bromo-2-formyl-phen-oxy)meth-yl]-3-(4-methyl-phen-yl)acrylate.

Project description:In the title compound, C(19)H(17)BrO(4), the dihedral angle between the two benzene rings is 82.9?(2)°. The mol-ecular structure is stabilized by an intra-molecular C-H?O hydrogen bond, which generates an S(7) ring motif. The crystal packing is stabilized by C-H?O hydrogen bonds, which generate two centrosymmetic ring systems with R(2) (2)(18) and R(2) (2)(14) graph-set motifs. The crystal packing is further stabilized by inter-molecular ?-? inter-actions [centroid-centroid distance = 3.984?(2)?Å].

| S-EPMC3297846 | biostudies-other

Methyl (E)-2-[(2-nitro-phen-oxy)meth-yl]-3-phenyl-acrylate.

Project description:The title compound, C(17)H(15)NO(5), adopts an E conformation with respect to the C=C double bond of the phenyl-acrylate unit. The phenyl ring and methyl acrylate group of the phenyl-acrylate unit are disordered over two sets of sites with site-occupancy ratios of 0.705?(5):0.295?(5) and 0.683?(3):0.317?(3), respectively. The mean plane through the benzene ring of the phenyl acrylate makes dihedral angles of 88.4?(8) (major component) and 86.7?(8)° (minor component) with the nitro-phen-oxy ring; the dihedral angle between the two components is 3.64?(6)°. Intra-molecular C-H?O interactions stabilise the molecular structure. In the crystal, C-H?O inter-actions result in a chain of mol-ecules running along the b axis.

| S-EPMC3379335 | biostudies-literature

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

Project description:In the title compound, C(18)H(17)NO(4), the hy-droxy-ethanimine group is essentially coplanar with the ring to which it is attached [C-C-N-O torsion angle = 179.94?(14)°]. The mol-ecules are linked into cyclic centrosymmetric R(2) (2)(6) dimers via O-H?N hydrogen bonds and the crystal packing is further stabilized by C-H?O inter-actions.

| S-EPMC3295410 | biostudies-literature

Methyl (E)-3-(2-formyl-phen-oxy)acrylate.

Project description:In the title compound, C11H10O4, the methyl acrylate sub-stituent adopts an extended E conformation with all torsion angles close to 180°. The conformation of the keto group with respect to the olefinic double bond is typically S-trans. In the crystal, mol-ecules are linked via pairs of C-H?O hydrogen bonds, forming inversion dimers with an R 2 (2)(8) graph-set motif. The dimers are further linked via C-H?O hydrogen bonds, forming chains along [001], which enclose R 3 (2)(16) graph-set ring motifs. The keto group O atomaccepts two C-H?O interactions.

| S-EPMC4051041 | biostudies-literature

(Z)-Methyl 2-[(2-eth-oxy-6-formyl-phen-oxy)meth-yl]-3-(4-ethyl-phen-yl)acrylate.

Project description:The title compound, C(22)H(24)O(5), consists of two substituted benzene rings linked by an ethyl acrylate group. The dihedral angle between the two benzene rings is 58.39?(7)°. The crystal packing is governed by two C-H?O inter-actions, one of which forms centrosymmetric dimers with a graph-set descriptor of R(2) (2)(18).

| S-EPMC3238902 | biostudies-other

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

Project description:In the title compound, C(19)H(19)NO(4), the dihedral angle between the mean planes through the benzene rings is 82.18?(7)°. The C=N double bond is trans-configured. The mol-ecules are linked into centrosymmetric dimers via pairs of O-H?N hydrogen bonds with the motif R(2) (2)(6). The crystal packing also features C-H?O inter-actions. The methyl group attached to one of the aromatic rings is disordered over two almost equally occupied positions [occpancy ratio = 0.51?(4):0.49?(4)].

| S-EPMC3379223 | biostudies-literature

N-(2-Formyl-phen-yl)-4-meth-oxy-N-(4-meth-oxy-phenyl-sulfon-yl)benzene-sulfonamide.

Project description:In the title compound, C(21)H(19)NO(7)S(2), the dihedral angles between the formyl-phenyl ring and the two meth-oxy-phenyl rings are 33.87 (9) and 41.00 (10)°. The S atoms have a distorted tetra-hedral geometry and the N atom shows a trigonally planar [r.m.s. deviation = 0.0437 (13) Å] coordination. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC3238957 | biostudies-literature

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