Synthesis of Pyrazoles and Pyrazolones Moiety from diazonium salt of 1,3,4-thiadiazole
DOI:
https://doi.org/10.54153/sjpas.2024.v6i1.587Keywords:
cyclic addition reactions, pyrazolone, diazonium salt and thiadiazoleAbstract
The diazonium salt of [2,2'-bi(1,3,4-thiadiazole)]-5,5'-diamine (BTD) and 5-(1-phenylprop-1-en-2-yl)-1,3,4-thiadiazol-2-amine (PTA) was coupled with ethyl acetoacetate, ethyl benzoylacetate and benzylacetone to give the corresponding diazo compounds under basic media. These products were allowed to react with hydrazine hydrate and phenylhydrazine under conventional method to give pyrazole and pyrazolone derivatives in high yields.
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