A convenient one-pot synthesis of substituted 2-pyrone derivatives |
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Authors: | Hassan Sheibani |
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Affiliation: | Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran |
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Abstract: | 2-Pyrone derivatives were prepared in a one step procedure from readily available (chlorocarbonyl)phenyl ketene and 1,3-diketones such as 2,4-pentanedione, 1,3-diphenyl-1,3-propanedione, 1-phenyl-1,3-butanedione, 1,3-cyclohexanedione, 5,5-dimethyl-1,3-cyclohexanedione, 1,3-dimethyl-pyrimidine-2,4,6-trione and ethyl 2,4-dioxopentanoate. A mechanism is presented to account for the formation of the products. This method provides an easy route to prepare 3,4,5,6-tetrasubstituted 2-pyrones in good to excellent yields and in a short experimental time. |
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Keywords: | 2-Pyrone 1,3-Diketones (Chlorocarbonyl)phenyl ketene |
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