Novel series of hydrazone incorporated pyrazoles and 1,2,3-triazole were synthesized and evaluated for their antioxidant activity by DPPH scavenging assay. Title compounds were prepared from 5-methyl-1-(p-nitro phenyl)- 1H-1,2,3-triazole-4-carbohydrazide (3) by reaction with appropriate pyrazole aldehydes. Among the tested compounds, compound 11a, 12d and 12e exhibited good scavenging activity.
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