NMR spectra and structures of protonated 1-vinylpyrroles

M. V. Sigalov, E. Yu Shmidt, A. I. Mikhaleva, S. E. Korostova, I. M. Lazarev, B. A. Trofimov

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Stable 1-vinylpyrrolium fluorosulfonates were prepared by the reaction of 1-vinylpyrroles with excess HSO3F at -50°C in CD2Cl2 and their 1H and 13C NMR spectra were obtained. Despite its overall positive charge, the pyrrole ring remains an electron donor relative to the vinyl group. Delocalization of the positive charge onto substituents decreases in the order 2-heteroaryl > 2-aryl > 2-alkyl.

Original languageEnglish
Pages (from-to)40-48
Number of pages9
JournalChemistry of Heterocyclic Compounds
Issue number1
StatePublished - 1 Jan 1993
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry


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