Tohda, Yasuo published the artcileNucleophilic reaction upon electron-deficient pyridone derivatives. X. One-pot synthesis of 3-nitropyridines by ring transformation of 1-methyl-3,5-dinitro-2-pyridone with ketones or aldehydes in the presence of ammonia, Application In Synthesis of 89076-64-2, the publication is Bulletin of the Chemical Society of Japan (1990), 63(10), 2820-7, database is CAplus.
The reaction of 1-methyl-3,5-dinitro-2-pyridone (I) with aldehydes, ketones, or enamines in the presence of NH3 gave alkyl and/or aryl-substituted 3-nitropyridine derivatives Enamines derived from ketones gave better results than the ketones themselves; enamines derived from aldehydes did not react. I reacted as an equivalent of NaO2N:C(CHO)2. A mechanistic pathway was discussed.
Bulletin of the Chemical Society of Japan published new progress about 89076-64-2. 89076-64-2 belongs to pyridine-derivatives, auxiliary class Pyridine,Nitro Compound,Benzene, name is 5-Nitro-2-phenylpyridine, and the molecular formula is C15H15OP, Application In Synthesis of 89076-64-2.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem