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

Table 5

Effect of catalyst concentration on the N-arylation of benzimidazole.

Entry	Catalyst conc. (mol%)	Reaction time (h)	Yield (%)^a
1	2.5	3	60
2	5	3	97
3	10	3	97
4	15	3	96

^aIsolated yield.