4-Pyrone


4-Pyrone 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 and kojic acid and of the important class of the Flavones.