rac-2,2′-(Thiane-2,6-diyl)bis[1-(4-bromophenyl)ethanone]

Abstract

In the title compound, C21H20Br2O2S, prepared by the reaction of 1,9-bis(4-bromophenyl)nona-2,7-diene-1,9-dione with sodium sulfide nonahydrate in acetonitrile, the six-membered thiopyran ring has a chair conformation while the H atoms ortho to the S atom adopt a cis configuration. The dihedral angle between the two benzene rings is 2.59 (8)°.