K_𝟕Na_𝟑P_𝟐W_𝟏𝟖Cu_𝟒O_𝟔𝟖: A Mild, Efficient, and Reusable Catalyst for the One-Pot Synthesis of 1,2,4,5-Tetra Substituted Imidazoles

Table 2

Effect of catalyst amount for the synthesis of (5-a).

Entry	Catalyst (mol%)	Time (min)	Yield (%)
1	0.05	100	70
2	0.1	90	80
3	0.2	90	92
4	0.5	120	80
5	—	180	—