3-Chloro-4'-fluorobenzophenone

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

4-Bromo-2'-methylbenzophenone

3-Iodo-3'-methylbenzophenone

3-Bromo-4'-n-pentylbenzophenone

3,5-Dichloro-4'-n-pentylbenzophenone

4-Bromo-2'-(thiomethyl)benzophenone

3,5-Dichloro-2'-(thiomethyl)benzophenone

4-Bromo-3',4',5'-trifluorobenzophenone

2-Chloro-3-(4-ethoxycarbonylbenzoyl)pyridine

2-Chloro-3-(5-ethoxycarbonyl-2-thenoyl)pyridine