Abstract A new tetranuclear copper (I)–pyridazine (pda)/rhenate hybrid has been synthesized under hydrothermal conditions and structurally characterized by X-ray crystallography. The activity of this catalyst, as well as its dissociation into mononuclear species, was investigated in homogeneous C–N arylation reactions. A variety of N- arylamides and-azoles were synthesized in good to excellent yields, revealing the effect of ...
