A 2-arilszubsztituált imidazolikinek gyuru-lánc tautomériája

Translated title of the contribution: Ring-chain tautomerism of 2-aryl-substituted imidazolidines

László Lázár, Anikó Göblyös, Ferenc Evanics, Gábor Bernáth, Ferenc Fülöp

Research output: Contribution to journalArticle

Abstract

1-Methyl-, ethyl-, (n-propyl)-, isopropyl-, phenyl- and aryl-substituted 2-arylimidazolidines proved to be ring-chain tautomeric mixtures in CDCl3 at 300 K. The relation between the ratios of the tautomeric forms and the electronic effect of the 2-aryl-substituent could be described by the equation log Kx = pσ+ + log KX=H. The prepared compounds are the first examples among the 2-arylimidazolidines of ring-chain tautomeric processes characterized by a Hammett-type correlation. The steric and electronic effects of the substituents on the nitrogen of the imidazolidine ring significantly influence the tautomeric equilibrium.

Original languageHungarian
Pages (from-to)451-459
Number of pages9
JournalMagyar Kemiai Folyoirat, Kemiai Kozlemenyek
Volume106
Issue number11
DOIs
Publication statusPublished - Jan 1 2000

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ASJC Scopus subject areas

  • Chemistry(all)

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