Нужна статья:
Nucleophilic Reaction upon Electron-Deficient Pyridone Derivatives. XIII. Regioselective Synthesis of 2-Substituted 3-Nitropyridines by One-Pot Reaction of Either 4- or 6-Substituted 1-Methyl-3,5-dinitro-2-pyridones with Ketones and Ammonia./
Yasuo Tohda, Tohru Kawahara, Miyuki Eiraku, Keita Tani, Nagatoshi Nisiwaki and Masahiro Ariga.
Bulletin of the Chemical Society of Japan
Vol. 67 (1994) , No. 8 pp.2176-2186
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http://dx.doi.org/10.1246/bcsj.67.2176
