Reaction of Aryl Iodides and Diarylamines Catalyzed by Benzamidine/CuI

N alkyl(aryl) benzamide reacted with thionyl chloride, and then in the presence of triarylamine reacted with arylamine or alkylamine. Six of benzamidines were gotten in high yields by this way. These ligands were applied in the reaction of phenyliodide and diphenylamine catalyzed by copper iodide, and N phenyl N′ tertbutylbenzamidine(L6) showed the best yield (96%) among these ligands. The scope of the reaction was examined, and various aryliodides and diarylamines with electron donating and electron withdrawing groups were reacted under optimized reactions. Most of them got excellent yields. This catalytic system was also used in synthesis of hole transporting materials TPB of OLED(Organic Light Emitting Diode) and its bromo derivatives and good yields were obtained (77% and 70%, respectively).