| Autor: |
Trofimov, B. A., Sigalov, M. V., Bzhezovskii, V. M., Kalabin, G. A., Korostova, S. E., Mikhaleva, A. I., Balabanova, L. N. |
| Zdroj: |
Chemistry of Heterocyclic Compounds; June 1978, Vol. 14 Issue: 6 p626-630, 5p |
| Abstrakt: |
On the basis of a comparative study and analysis of the chemical shifts in the 13C NMR spectra of 1-vinyl-2-arylpyrroles and 3-alkyl-1-vinyl-2-phenylpyrroles, as well as 2-phenyl- and 1-ethyl-2-phenylpyrroles, it was established that the effects of substituents in the investigated series are transmitted via a mechanism involving conjugation and p induction; the conductivity and polarizability of the 2-arylpyrrole system increase when a vinyl group is introduced in the 1 position or, in the case of the 1-vinylpyrrole system, when a phenyl group is introduced in the 2 position; this is due to the increase in the degree of overall conjugation. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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