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Transmission of the substituent effects in 2-substituted benzimidazoles studied by 1H and 13C nuclear magnetic resonance |
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| Authors: | V A Lopyrev L I Larina T I Vakul'skaya M F Larin O B Nefedova E F Shibanova M G Voronkov |
| Abstract: | 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. |
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