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In the crystal structure of the title compound, C(21)H(18)ClFO(3)·0.5C(7)H(8), the toluene solvent mol-ecules occupy special positions on centres of symmetry, and consequently are disordered across this site. The cyclo-hexene ring has a slightly distorted sofa conformation; the two benzene rings are inclined by 72.90 (7)° and their planes make dihedral angles of 30.09 (10) (chloro-phen-yl) and 88.13 (6)° (fluoro-phen-yl) with the approximately planar part of the cyclo-hexenone ring [maximum deviation from plane through five atoms is 0.030 (2) Å, the sixth atom is 0.672 (3)Å out of this plane]. Weak inter-molecular C-H⋯O and C-H⋯X (X = F, Cl) inter-actions join mol-ecules into a three-dimensional structure. Also, a relatively short and directional C-Cl⋯F-C contact is observed [Cl⋯F = 3.119 (2) Å, C-Cl⋯F = 157.5 (2)° and C-F⋯Cl 108.3 (2)°]. The solvent mol-ecules fill the voids in the crystal structure and are kept there by relatively short and directional C-H⋯π inter-actions.

(1RS,6SR)-Ethyl 4-(4-chlorophenyl)-6-(4-fluorophenyl)-2-oxocyclohex-3-ene-1-carboxylate toluene hemisolvate