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(E)-3-(2-Chloro-phen-yl)-1-(2-fur-yl)prop-2-en-1-one.

ABSTRACT: The title compound, C(13)H(9)ClO(2), adopts an E configuration with respect to the C=C double bond of the propenone unit. The benzene and furyl rings are twisted slightly from each other, making a dihedral angle of 6.47 (7)°. Intra-molecular C-H⋯O and C-H⋯Cl hydrogen bonds generate an S(5)S(5)S(5) ring motif. In the crystal structure, mol-ecules are stacked along the b axis and weak inter-molecular C-H⋯O hydrogen bonds are observed.

SUBMITTER: Fun HK

PROVIDER: S-EPMC2962097 | biostudies-literature | 2008 Jul

REPOSITORIES: biostudies-literature

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(E)-3-(2-Chloro-phen-yl)-1-(2-fur-yl)prop-2-en-1-one.

Fun Hoong-Kun HK Patil P S PS Jebas Samuel Robinson SR Dharmaprakash S M SM

Acta crystallographica. Section E, Structure reports online 20080712 Pt 8

The title compound, C(13)H(9)ClO(2), adopts an E configuration with respect to the C=C double bond of the propenone unit. The benzene and furyl rings are twisted slightly from each other, making a dihedral angle of 6.47 (7)°. Intra-molecular C-H⋯O and C-H⋯Cl hydrogen bonds generate an S(5)S(5)S(5) ring motif. In the crystal structure, mol-ecules are stacked along the b axis and weak inter-molecular C-H⋯O hydrogen bonds are observed. ...[more]

PMID: 21203181

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(E)-3-(4-Chloro-phen-yl)-1-(2-fur-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(13)H(9)ClO(2), the benzene and furyl rings are slightly twisted from each other with a dihedral angle of 5.1 (1)°. An intra-molecular C-H⋯O hydrogen-bond inter-action generates an S(5) ring motif. In the crystal structure, mol-ecules are stacked along the b axis and the crystal packing is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

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1-(4-Chloro-phen-yl)-3-(5-methyl-2-fur-yl)prop-2-en-1-one.

Project description:The title compound, C(14)H(11)ClO(2), was prepared from 4-chloro-hypnone and 5-methyl-furfural by an aldol condensation reaction. The dihedral angle formed between the two benzene rings is 7.71 (2)°. The crystal structure is stabilized by C-H⋯O inter-actions.

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(2E)-1-(3-Chloro-phen-yl)-3-(4-chloro-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(15)H(10)Cl(2)O, is a chalcone with 3-chloro-phenyl and 4-chloro-phenyl substituents bonded at the opposite ends of a propenone group, the biologically active region. The dihedral angle between mean planes of these two chloro-substituted benzene rings is 46.7 (7)° compared to 46.0 (1) and 32.4 (1)° in similar published sructures. The angles between the mean plane of the prop-2-en-1-one group and the mean planes of the 3-chloro-phenyl and 4-chloro-phenyl rings are 24.1 (2) and 29.63°, respectively. While no classical hydrogen bonds are present, weak inter-molecular C-H⋯π-ring inter-actions are observed, which contribute to the stability of crystal packing.

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(E)-3-(2-Chloro-phen-yl)-1-(4-chloro-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(15)H(10)Cl(2)O, adopts an E configuration with respect to the C=C bond of the propenone unit. The dihedral angle between the two benzene rings is 32.4 (1)°. Intra-molecular C-H⋯O and C-H⋯Cl hydrogen bonds generate an S(5)S(5)S(5) motif. In addition, the crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

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1-(4-Chloro-phen-yl)-3-(3,4-dimethyl-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(17)H(15)ClO, was prepared from 3,4-dimethyl-benzaldehyde and 4-chloro-hypnone by Aldol condensation. The dihedral angle formed by the two benzene rings is 48.91 (8)°. Only van der Waals forces affect the packing.

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(E)-1-(4-Bromo-phen-yl)-3-(2-fur-yl)prop-2-en-1-one.

Project description:In the title compound, C(13)H(9)BrO(2), the benzene and furan rings form a dihedral angle of 44.35?(14)°. The crystal packing exhibits no significantly short inter-molecular contacts.

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(E)-3-(2-Fur-yl)-1-(2-hydroxy-phen-yl)prop-2-en-1-one.

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(E)-3-(3,4-Dimethoxy-phen-yl)-1-(2-fur-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(15)H(14)O(4), the benzene and furyl rings are inclined to each other with a dihedral angle of 41.5 (1)°. An intra-molecular C-H⋯O hydrogen-bond inter-action generates an S(5) ring motif. In the crystal structure, mol-ecules are stacked along the b axis and the crystal packing is stabilized by inter-molecular C-H⋯O and C-H⋯π inter-actions. In addition, π-π stacking inter-actions with a centroid-to-centroid distance of 3.5855 (11) Å are observed.

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(E)-1-(4-Chloro-phen-yl)-3-(4-methyl-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(16)H(13)ClO, adopts an E configuration with respect to the C=C double bond of the propenone unit. The dihedral angle between the two benzene rings is 45.9 (2)°. In the crystal structure, mol-ecules are arranged into sheets parallel to the ac plane and the sheets are stacked along the b axis. This arrangement is stabilized by weak inter-molecular C-H⋯π inter-actions involving both aromatic rings.

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(E)-3-(3-Chloro-phen-yl)-1-(4-methoxy-phen-yl)prop-2-en-1-one.

Project description:The title mol-ecule, C(16)H(13)ClO(2), is trans with respect to the C=C double bond. The dihedral angles between the mean plane of the prop-2-en-1-one unit and those of the 3-chloro- and 4-meth-oxy-substituted benzene rings are 20.93 (9) and 20.42 (10)°, respectively, and the dihedral angle between the mean planes of the two benzene rings is 40.96 (5)°. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds, forming chains along the b axis.

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