A general,efficient and inexpensive catalyst system for the coupling reaction of aryl iodides and arylamines was studied in this paper.By using 10 mol% of Cu2O as the copper source,15 mol% of dimethylglyoxime as the ligand,K3PO4·3 H2O as the base,and DMF as the solvent,a series of diarylamines were synthesized with moderate yields.
