title: Ethyl 6-(4-bromo-phen-yl)-4-(4-fluoro-phen-yl)-2-oxocyclo-hex-3-ene-1-carboxyl-ate.
abstract: 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.
authors.affiliation: X-ray Crystallography Laboratory, Post-Graduate Department of Physics & Electronics, University of Jammu, Jammu Tawi 180 006,  India.
authors.forename: Rajni
authors.initials: R
authors.lastname: Kant
authors.forename: Vivek K
authors.initials: VK
authors.lastname: Gupta
authors.forename: Kamini
authors.initials: K
authors.lastname: Kapoor
authors.forename: M
authors.initials: M
authors.lastname: Sapnakumari
authors.forename: B
authors.initials: B
authors.lastname: Narayana
authors.forename: B K
authors.initials: BK
authors.lastname: Sarojini