Transmission of the substituent effects in 2-substituted benzimidazoles studied by1H and13C nuclear magnetic resonance

Autor: Lyudmila I. Larina, V. A. Lopyrev, M. F. Larin, O. B. Nefedova, Tamara I. Vakul'skaya, M. G. Voronkov, E. F. Shibanova
Rok vydání: 1981
Předmět:
Zdroj: Organic Magnetic Resonance. 15:219-224
ISSN: 1097-458X
0030-4921
DOI: 10.1002/mrc.1270150302
Popis: The substituent influence on the 1H and 13C NMR chemical shifts in 2-substituted benzimidazoles and their anions and cations has been investigated. The transmission of the electronic effects of substituents from C-2 to C-5 (6) is approximately 20% less effective than that in the opposite direction. The solvent influence on the chemical shifts of protons and transmission effects in the charged forms of 2-substituted benzimidazoles has been studied.
Databáze: OpenAIRE