3'-Bromo-3,3-dimethylbutyrophenone

2,2-dimethyl-2'-thiomethylbutyrophenone

2',2,2,5'-Tetramethylbutyrophenone

2,2-dimethyl-2'-trifluoromethylbutyrophenone

4'-Bromo-2,2-dimethyl-2'-fluorobutyrophenone

3',4'-Difluoro-2,2-dimethylbutyrophenone

2',2,2-trimethylpropiophenone

3'-Carboethoxy-2,2-dimethylpropiophenone

2,2-Dimethyl-4'-fluoropropiophenone

2',2,2,5'-tetramethylpropiophenone

2,2,3',5'-Tetramethylpropiophenone