(3-(diethylamino)cyclohex-4-ene-1,2-diyl)bis((4-chlorophenyl)methanone)

[2-(4-chlorobenzoyl)phenyl]-(4-chlorophenyl)methanone

1,3-bis(4-chlorophenyl)-4,7-dihydro-2-benzofuran

1,2-bis-(4-hydroxy-benzoyl)-benzene

(E)-1,4-bis(4-chlorophenyl)but-2-ene-1,4-dione