4-Acetoxy-2',3'-difluorobenzophenone

4-Acetoxy-2',3',4',5',6'-pentafluorobenzophenone

4-n-Butyl-4'-iodobenzophenone

4-tert-Butyl-4'-iodobenzophenone

3,3'-Dichloro-4'-fluorobenzophenone

2,3',5'-Trichlorobenzophenone

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

2-Bromo-3'-chloro-5'-fluorobenzophenone

5-Fluoro-3,3',5'-trichlorobenzophenone

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

3-Chloro-2'-iodo-4-methylbenzophenone