Table 1: N-arylation of 1,2,4 triazoles.

EntryAzolesAryl iodideReaction temperature/h(Yield)a

(1)515092.tab.001a515092.tab.001bRT/2 h84%

(2)515092.tab.001c515092.tab.001dRT/2 h91%

(3)515092.tab.001e515092.tab.001fRT/4 h72%

(4)515092.tab.001g515092.tab.001hRT/4 h56%

(5)515092.tab.001i515092.tab.001jRT/2 h78%

(6)515092.tab.001k515092.tab.001lRT/4 h60%

aIsolated yield: 1,2,4-triazoles (3 mmol), iodobenzene (3.3 mmol), CuO nanoparticles (0.15 mmol), K2CO3 (3 mmol), and N–N dimethyl formamide (10 mL) at room temperature.