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3-(Diphenylphosphino)propanoic acid(L2) has proved to be an efficient ligand for the copper-catalyzed C–N coupling reactions.N-arylation of imidazoles with aryl iodides catalyzed by CuCl/L2 was smoothly carried out in DMSO at 100 8C with a yield up to 98%.N-arylation of 1H-pyrazole with aryl iodides and bromides catalyzed by Cu(OAc)2/L2 in 1 4-dioxane also gave the corresponding products with yields of40%–98%.
3- (Diphenylphosphino) propanoic acid (L2) has proved to be an efficient ligand for the copper-catalyzed C-N coupling reactions. N-arylation of imidazoles with aryl iodides catalyzed by CuCl / L2 was carried out in DMSO at 100 8C with a yield up to 98%. N-arylation of 1H-pyrazole with aryl iodides and bromides catalyzed by Cu (OAc) 2 / L2 in 1 4-dioxane also gave the corresponding products with yields of 40% -98%.