2-Bromo-3',5'-difluorobenzophenone

4-Ethoxy-3'-iodobenzophenone

4-Chloro-2'-ethylbenzophenone

3,4-Dichloro-2'-ethylbenzophenone

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

4-(Ethylthio)-2'-iodobenzophenone

4-(Ethylthio)-4'-iodobenzophenone

2-Bromo-3'-fluoro-4'-methoxybenzophenone

3'-Fluoro-3-iodo-4'-methoxybenzophenone

3'-Fluoro-3-iodo-5'-methylbenzophenone

3,3',4-Trifluoro-5'-methylbenzophenone