Synthesis of 2-Pyrones from Renewable Resources

Abstract

An atom-economic reaction sequence on a multigram scale for synthesizing 2-pyrone was developed starting from furfuryl alcohol, a renewable resource made from bran or bagasse, utilizing a large-scale thermal rearrangement of cyclopentadienone epoxide as the key step. Additionally, 6-substituted 2-pyrone natural product derivatives are readily accessible by this approach.

Key words

pyrone - furfural - furfuryl alcohol - renewable resources - Piancatelli­ rearrangement - flash vacuum pyrolysis

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