3,4-Dichloro-4'-ethoxybenzophenone

3,4-(Ethylenedioxy)-3'-iodobenzophenone

2-Bromo-4'-(ethylthio)benzophenone

3,5-Difluoro-3',4'-(ethylenedioxy)benzophenone

4-(Ethylthio)-4'-iodobenzophenone

3,4,4'-Trifluorobenzophenone

3,5-Dichloro-4'-fluorobenzophenone

4-Chloro-3'-fluoro-4'-methylbenzophenone

3'-Fluoro-2-iodo-4'-methylbenzophenone

3,5-Dichloro-3'-fluoro-4'-methylbenzophenone

4-tert-Butyl-3'-fluoro-5'-methylbenzophenone