Effect of meso substituents on the NH acidities of benzimidazoles

Autor: T. V. Kashik, S. M. Ponomareva, G. G. Skvortsova, Abramova Nina D
Rok vydání: 1983
Předmět:
Zdroj: Chemistry of Heterocyclic Compounds. 19:997-1000
ISSN: 1573-8353
0009-3122
DOI: 10.1007/bf00506888
Popis: The NH acidities of a systematic series of 2-substituted benzimidazoles in acetonitrile were studied by potentiometric titration. It was found that the intramolecular interrelationships between the substituent in the 2 position and the acidity center have primarily inductive character and are expressed quantitatively by a dependence of the pKa = f(σm) type.
Databáze: OpenAIRE