Table 1.

Changes in the basicity of alkylimidazoles depending on the position and number of alkyl groups according to [54], in aqueous solutions at 25 °C, ionic strength 0.5 mol/dm³ (KNO₃).

Homologous Series	Linear Equation for Basicity pKa = an + b
1-alkylimidazole	pKa = 0.0222 n + 7.165
1,2-dialkylimidazole	pKa = 0.0432 n + 8.01
1,2,4-trialkylimidazole	pKa = 0.0503 n + 8.46
1,4-dialkylimidazole	pKa = 0.0279 n + 7.79
2-alkylimidazole	pKa = 0.0349 n + 7.87

n—is the sum of carbon atoms in the alkyl substituents.