Abstract
Abstract The Pechmann reaction introduces one of the most significant and simple methods for the synthesis of a variety of heterocyclic compounds, particularly coumarin derivatives. In 1883, a German chemist, Hans von Pechmann synthesized coumarins from the reaction of phenols with a carboxylic acid or ester containing a β-carbonyl group. In this article, we try to highlight the various aspects, issues, and applications of this reaction.
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