A series of new N-substituted pyrazole-containing benzimidazoles was synthesized starting from 1,2-diaminobenzene and pyrazole-4-carbaldehyde in good yield. Antioxidant activity of all title compounds was assessed using 2,2-diphenyl-1-picrylhydrazyl and hydrogen peroxide assays. Some of the synthesized compounds having benzyl substituent at the imidazole nitrogen exhibited good activity in both assays.
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The authors thank Council of Scientific and Industrial Research (CSIR), New Delhi, INDIA for providing financial assistance (S. No. 02(0137)/13/EMR-II, dated 12-04-2013).
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Published in Khimiya Geterotsiklicheskikh Soedinenii, 2017, 53(2), 173–178
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Bellam, M., Gundluru, M., Sarva, S. et al. Synthesis and antioxidant activity of some new N-alkylated pyrazole-containing benzimidazoles. Chem Heterocycl Comp 53, 173–178 (2017). https://doi.org/10.1007/s10593-017-2036-6
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DOI: https://doi.org/10.1007/s10593-017-2036-6