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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 9
BKCSDE 31(9)
September 20, 2010 

Studies on the Different Reaction Pathways between 3-Acetyl-5-benzoyl-6-methyl-2-phenyl-4H-pyran-4-one and Alkylamines
Hasan Genc*, Meltem Tan, Selcuk Gumu?*, Nurettin Menge?, ?shak Bildirici, Ahmet ?ener
Heterocyclic compounds, Pyranones, Pyridinones, Quantum chemical calculati
3-Acetyl-5-benzoyl-6-methyl-2-phenyl-4H-pyran-4-one has been subjected to condensation with a series of primary amines (ethylamine ? octylamine) to clarify the proposed mechanism in our previous study. The reactions of the shorter amines of the series (ethylamine ? butylamine) yielded unsymmetric pyridinone products, whereas the other amines (pentylamine ? octylamine) yielded symmetrical pyridinones. The starting material and the products as well as the intermediates have been subjected to theoretical analysis by quantum chemical calculations at B3LYP/6-31G(d,p) level, which provided supporting data for the experimental findings.
2633 - 2636
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