Demirayak, Seref; Ogretir, Cemil published an article in 1990, the title of the article was Proton-loss behaviors of some benzimidazole derivatives and their Hammett relationships.Synthetic Route of 5709-67-1 And the article contains the following content:
The proton-loss acidity constants, pKa, of 39 (un)substituted benzimidazole derivatives were determined by UV-visible spectroscopy. The calculated ΔpKa values were plotted vs. δm values to get Hammett graphs, and the results were discussed. The experimental process involved the reaction of 2-Nitro-1H-benzo[d]imidazole(cas: 5709-67-1).Synthetic Route of 5709-67-1
The Article related to lfer acidity benzimidazole, Physical Organic Chemistry: Acid-Base, Tautomerism, and Other Equilibrium Studies and other aspects.Synthetic Route of 5709-67-1
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem