• Pande G. B
• Kendre K.L

The reaction of dehydroacetic acid (I) (3-acetyl-4-hydroxy-6-methyl-2-pyrone) with amine give 4-pyridones (IV) has been known for a very long time (I). It has now been found that precursers to the pyridones are open-chain compounds 2,6-bis-(alky1amino)-2,5-heptadien-4-ones (III), which are isolable, stable compounds. The preparation of these compounds from 4-pyrones has been noted. The result showed that efficiency and yield of the reaction is high as compared to other conventional methods. This method offers advantage in terms of simple procedure and workup, mild reaction condition and excellent yields.

Dehydroacetic acid, Dihydropyridones, 4-pyrones.

"Synthesis and characterization of substituted pyridones using isatoic anhydride", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 4, page no.416-421, April-2023, Available :http://www.jetir.org/papers/JETIRFW06054.pdf

"Synthesis and characterization of substituted pyridones using isatoic anhydride", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 4, page no. pp416-421, April-2023, Available at : http://www.jetir.org/papers/JETIRFW06054.pdf