Abstract
Cu2O/2,6-bis(2-methylhydrazine-1-carbonyl)pyridine 1-oxide was found to be an efficiently catalytic system for the N-arylation of imidazole, indole, benzimidazole, pyrrole, benzylamine and ethanolamine with aryl iodides and bromides by using NaOH as base in the presence of 20 mol% (n-Bu)4NBr, and water as solvent at 130 °C in 24 h, and giving the N-arylated products in moderate to excellent yields.
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We gratefully acknowledge the Natural Science Foundation of China (21606153) for the financial support.
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Wang, X., Meng, F., Zhang, J. et al. 2,6-Bis(2-methylhydrazine-1-carbonyl)pyridine 1-oxide as an Efficient Ligand for Copper-Catalyzed C–N Coupling Reaction in Water. Catal Lett 148, 1142–1149 (2018). https://doi.org/10.1007/s10562-018-2321-8
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DOI: https://doi.org/10.1007/s10562-018-2321-8