Ethyl 6-(4-bromophenyl)-4-(4-fluorophenyl)-2-oxocyclohex-3-ene-1-carboxylate

Vivek K Gupta,B Narayana,Kamini Kapoor,M Sapnakumari,B K Sarojini,Rajni Kant

doi:10.1107/s1600536812038202

Vivek K Gupta, B Narayana + Show 4 more

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https://doi.org/10.1107/s1600536812038202

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Abstract

There are two independent molecules in the asymmetric unit of the title compound, C21H18BrFO3, in which the dihedral angles between the fluorophenyl and bromophenyl groups are 77.0 (1) and 85.8 (1)°. In one of the molecules, two methine C—H groups of the cyclohexene ring are disordered over two sets of sites in a 0.53 (2):0.47 (2) ratio. In both molecules, 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 cyclohexene rings have slightly distorted sofa conformations in both molecules. In the crystal, C—H⋯O interactions link molecules into chains along the b axis.

Highlights

There are two independent molecules in the asymmetric unit of the title compound, C21H18BrFO3, in which the dihedral angles between the fluorophenyl and bromophenyl groups are
C—H groups of the cyclohexene ring are disordered over two sets of sites in a 0.53 (2):0.47 (2) ratio
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

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Electronics, University of Jammu, Jammu Tawi 180 006, India, bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, India, and c.

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