Английская Википедия:4-Pyrone

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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.[1]

Reactions

4-Pyrone and its derivatives react with amines in protic solvents to form 4-Pyridones.[1][2][3]

Derivatives

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

Файл:Maltol.svg Файл:KojicAcid.png
Maltol Kojic acid

See also

References