Room Temperature N-Arylation of 1,2,4-Triazoles under Ligand-Free Condition

Table 6

Recyclability of CuO nanoparticles as a catalyst.

Entry	Cycle	(Yield %)^a
1	1st	97
2	2nd	93
3	3rd	90
4	4th	80
5	5th	78

^aIsolated yield, reaction conditions: azole (3 mmol), iodobenzene (3.3 mmol), CuO nanoparticles (0.15 mmol), K₂CO₃ (3 mmol), and N–N dimethyl formamide (10 mL) at reflux for 3 h.