10.1002/jhet.507
The research investigates the synthesis and reactivity of 3-bromoacetyl-4-hydroxy-6-methyl-2H-pyran-2-one (bromo-DHAA) with various binucleophilic amines. The study begins with the synthesis of bromo-DHAA by reacting dehydroacetic acid (DHAA) with bromine in glacial acetic acid. This compound then reacts with different binucleophilic amines, including alkanediamines, phenylhydrazines, ortho-phenylenediamines, and ortho-aminobenzenethiol, to produce a range of novel heterocyclic products. These products are characterized using IR, 1H and 13C NMR, and mass spectra. The research explores the potential of these compounds for biological activity, with one of the synthesized compounds showing antifungal properties. The study highlights the versatility of bromo-DHAA as a reactive intermediate for generating diverse 2-pyrone derivatives through selective nucleophilic attacks and cyclocondensation reactions.