(E)-1-(4-Chlorophenyl)-3-[4-(diethylamino)phenyl]prop-2-en-1-one1
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چکیده
The asymmetric unit of the title chalcone derivative, C(19)H(20)ClNO, contains two independent mol-ecules, which differ in the conformations of the ethyl groups in the diethyl-amino substituents. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into ribbons propogating in [010]. The crystal packing also exhibits weak C-H⋯π inter-actions.
منابع مشابه
(2E)-1-(4-Chlorophenyl)-3-[4-(propan-2-yl)phenyl]prop-2-en-1-one
In the title compound, C18H17ClO, the dihedral angle between the benzene rings is 53.5 (1)°. The mean plane of the prop-2-en-1-one group is twisted by 24.5 (8) and 33.5 (3)° from the chloro- and propanyl-substituted rings, respectively.
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The crystal structures of three chalcones with a bromo-substituted but-oxy side chain, viz. (E)-1-[4-(4-bromo-but-oxy)-phen-yl]-3-phenyl-prop-2-en-1-one, C19H19BrO2, (I), (E)-1-[4-(4-bromo-but-oxy)-phen-yl]-3-(4-meth-oxy-phen-yl)prop-2-en-1-one, C20H21BrO3, (II), and (E)-1-[4-(4-bromo-but-oxy)-phen-yl]-3-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one, C21H23BrO4, (III), are reported. In all mol-ecule...
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The title compound, C(17)H(16)ClNO, was synthesized using a solvent-free method by reaction of 4-(dimethyl-amino)benzaldehyde with 4-chloro-acetophenone and NaOH. The chloro-phenyl ring makes a dihedral angle of 18.1 (3)° with the central propenone unit, while the (dimethyl-amino)phenyl group is disordered over two orientations of equal occupancies, which make dihedral angles with the central p...
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In the title mol-ecule, C(22)H(15)Cl(2)NO, the dihedral angles between the central aromatic ring and the N- and C=O-bonded rings are 43.13 (13) and 0.80 (14)°, respectively. The dihedral angle between the terminal rings is 43.15 (14)°. The major twist occurs about the C(ar)-N bond [C(ar)-C(ar)-N=C = 42.3 (4)°; ar is aromatic].
متن کامل(E)-1-(4-Chlorophenyl)-3-[4-(2,3,4,6-tetra-O-acetyl-β-d-allopyranosyloxy)phenyl]prop-2-en-1-one
The asymmetric unit of the title compound, C(29)H(29)ClO(11), contains two independent mol-ecules of similar geometry, both adopting an E conformation about the C=C double bond. The dihedral angles formed by benzene rings are 10.73 (16) and 13.79 (18)°. The pyran-oside rings adopt a chair conformation. Intra-molecular C-H⋯O close contacts occur. The crystal packing is stabilized by inter-molecu...
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