ChemInform Abstract: An Advantageous Synthesis of 2‐Substituted Benzimidazoles Using Polyphosphoric Acid. 2‐(Pyridyl)‐1H‐benzimidazoles, 1‐Alkyl‐(1H‐ benzimidazol‐2‐yl)pyridinium Salts, Their Homologues and Vinylogues. | Publicación