Ethyl 6-(4-bromophenyl)-4-(4-fluorophenyl)-2-oxocyclohex-3-ene-1-carboxylate
نویسندگان
چکیده
There are two independent mol-ecules in the asymmetric unit of the title compound, C(21)H(18)BrFO(3), in which the dihedral angles between the fluoro-phenyl and bromo-phenyl groups are 77.0 (1) and 85.8 (1)°. In one of the mol-ecules, two methine C-H groups of the cyclo-hexene ring are disordered over two sets of sites in a 0.53 (2):0.47 (2) ratio. In both mol-ecules, the atoms of the ethyl group were refined as disordered over two sets of sites with occupancies of 0.67 (2):0.33 (2) and 0.63 (4):0.37 (4). The cyclo-hexene rings have slightly distorted sofa conformations in both mol-ecules. In the crystal, C-H⋯O inter-actions link mol-ecules into chains along the b axis.
منابع مشابه
Ethyl 4-(4-bromophenyl)-6-r-phenyl-2-oxocyclohex-3-ene-1-t-carboxylate
In the title compound, C(21)H(19)BrO(3), the cyclo-hexene ring adopts an envelope conformation, with all substituents equatorial. The plane through its five coplanar atoms makes dihedral angles of 28.88 (10) and 71.94 (10)° with the bromo-benzene and phenyl rings, respectively. The dihedral angle between the latter two rings is 51.49 (15)°. Inter-molecular C-H⋯O hydrogen bonds are found in the ...
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