4-Pyrone

4-Pyrone (γ-pyrone or pyran-4-one) is an unsaturated cyclic chemical compound with the molecular formula C5H4O2.It is isomeric with 2-pyrone.

Preparation
4-Pyrone is prepared via the thermal decarboxylation of chelidonic acid.

Reactions
4-Pyrone and its derivatives react with amines in protic solvents to form 4-Pyridones.

Derivatives
4-Pyrone forms the central core of several natural chemical compounds, including maltol, meconic acid, kojic acid, and of the important class of the Flavones.


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 * [[Image:Maltol.svg|70px]]
 * [[Image:KojicAcid.png|120px]]
 * Maltol
 * Kojic acid
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 * }