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 |
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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 |
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