N-(3-Bromo-1,4-dioxo-1,4-dihydro-2-naphthyl)-2-chloro-N-(2-chlorobenzoyl)-benzamide

The title compound, C24H12BrCl2NO4, was synthesized from 2-amino-3-bromo-1,4-naphthoquinone and 2-chlorobenzoyl chloride. The crystal structure shows that each of the chlorophenyl rings is inclined at about 60 degrees to the naphthoquinone ring system. The two chlorophenyl rings adopt a conformation that ensures that chlorine substituents are anti so as to reduce electronic repulsion. An examination of the packing shows close O center dot center dot center dot Br and Cl center dot center dot center dot Cl contacts of 2.947 (2) and 3.346 (1) angstrom, respectively. In addition, the molecules are linked by weak intermolecular C-H center dot center dot center dot O and C-H center dot center dot center dot Cl interactions.