Abstract
A series of 2-(hetero)arylbenzimidazoles were synthesized by the catalytic condensation of (hetero)aryl aldehydes with 1,2-phenylenediamine derivatives at room temperature in the presence of air as the oxidant. Copper nanoparticles on charcoal was employed as an efficient and mild catalyst for this methodology.
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We gratefully acknowledge the support of this study by the Shiraz University and Shiraz University of Technology Research Council.
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Sharghi, H., Khalifeh, R., Mansouri, S.G. et al. Simple, Efficient, and Applicable Route for Synthesis of 2-Aryl(Heteroaryl)-Benzimidazoles at Room Temperature Using Copper Nanoparticles on Activated Carbon as a Reusable Heterogeneous Catalyst. Catal Lett 141, 1845–1850 (2011). https://doi.org/10.1007/s10562-011-0671-6
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DOI: https://doi.org/10.1007/s10562-011-0671-6