4-Acetoxy-3',4'-difluorobenzophenone

4-Acetoxy-2',6'-dimethylbenzophenone

4-n-Butyl-3',5'-dichlorobenzophenone

3-Bromo-2'-chlorobenzophenone

2,3',5'-Trichlorobenzophenone

2,3'-Dichloro-5'-fluorobenzophenone

4-Bromo-4'-chloro-3'-fluorobenzophenone

3,4'-Dichloro-4-methylbenzophenone

2,4'-Dichloro-3'-methylbenzophenone

3-Bromo-4'-chloro-3'-methylbenzophenone

3,5-Dichloro-4'-iodobenzophenone