Abstract
AbstractScaffold shift of biologically active pyranone carboxamide to pyrazolyl acetamide, which is another biologically important scaffold was achieved through one‐pot base catalyzed metal‐free intramolecular ring transformation. Out of the two probable mechanistic pathways (Figure 3), substitution at C‐4 by hydrazineyl leading to a pyranone intermediate followed by an intramolecular attack of hydrazineyl at C‐6 and decarboxylation to yield pyrazolyl acetamides was rationalized through LCMS, UV monitoring and computational studies.
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