Summary
We have carried out the synthesis of 2-pyrone-5- and 2-pyrone-6-carboxylic acids usingβ,β-dichloro-acrolein.
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Zakharkin, L.I., Sorokina, L.P. Preparation of 2-pyrone-5- and 2-pyrone-6-carboxylic acid through β, β-dichloroacrolein. Russ Chem Bull 11, 2004–2006 (1962). https://doi.org/10.1007/BF00921371
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DOI: https://doi.org/10.1007/BF00921371