4-tert-Butyl-3'-chloro-5'-fluorobenzophenone

3,4-Dimethyl-4'-iodobenzophenone

3,5-Dichloro-3',5'-dimethyl-4'-methoxybenzophenone

4-Ethoxy-3'-iodobenzophenone

3,4-Dichloro-4'-ethoxybenzophenone

3-Chloro-2'-ethylbenzophenone

3,5-Dichloro-2'-ethylbenzophenone

2-Bromo-3',4'-(ethylenedioxy)benzophenone

4-Bromo-3',4'-(ethylenedioxy)benzophenone

4-(Ethylthio)-3'-iodobenzophenone

3,5-Dichloro-4'-(ethylthio)benzophenone