Perfluoro-2, 5-dimethyl-3, 4-hexanedione and aromatic or aliphatic amines gave the respective 1: 1 adducts in good yields. With excess amounts of aliphatic amines or basic aromatic amines such as p-anisidine, the perfluorodiketone gave oxamides. With o- phenylenediamine, it gave 2, 3-dihydroxyquinoxaline.
[Cotton, F. Albert; Liu, Chun Y.; Murillo, Carlos A.; Villagran, Dino; Wang, Xiaoping Journal of the American Chemical Society, 2003 , vol. 125, # 44 p. 13564 - 13575]