3-Bromo-4'-(ethylthio)benzophenone

3-Chloro-4'-ethylbenzophenone

3-Chloro-3',4'-dimethylbenzophenone

4-tert-Butyl-4'-chlorobenzophenone

3,5-Difluoro-3'-methoxybenzophenone

3,5-Difluoro-4'-n-propylbenzophenone

3,3',5,5'-Tetrafluorobenzophenone

3,4-Dichloro-3',4'-difluorobenzophenone

3,4-Difluoro-3'-methylbenzophenone

4-Methoxy-3,3',4'-trifluorobenzophenone