Synthesis of 4-Pyrones by Formal Hydration of 1,3-Diynones Promoted by 1,4-Addition of Piperidine.
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DOI: 10.1021/acs.orglett.2c02914
Abstract: A new approach for the synthesis of 4-pyrones with broader substrate scope and functional group tolerance is described. The reaction proceeds via an initial 1,4-addition by piperidine, followed by nitrogen-assisted 6-endo-dig cyclization and hydrolysis. 1,3-Diynones… read more here.
Keywords: synthesis pyrones; addition piperidine; pyrones formal; formal hydration ... See more keywords
Synthesis of 2-Pyrones from Renewable Resources
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DOI: 10.1055/a-2085-4089
Abstract: An atom economic reaction sequence in a multigram scale for the synthesis of 2-pyrone was developed starting from furfuryl alcohol, a renewable resource made from bran or bagasse, and cyclopentadiene as a recyclable auxiliary. Utilizing… read more here.
Keywords: synthesis pyrones; pyrones renewable; renewable resources; synthesis ... See more keywords