- Ring-chain tautomerism of 2-aryl-substituted imidazolidines
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N-Methyl-, N-ethyl-, N-(n-propyl)-, N-(iso-propyl)- and N-phenyl-2- arylimidazolidines proved to be ring-chain tautomeric mixtures in CDCl3. The ratios of the open and ring forms in the tautomeric equilibria of these compounds is described by t
- Lazar, Laszlo,Goeblyoes, Aniko,Evanics, Ferenc,Bernath, Gabor,Fueloep, Ferenc
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- RING-CHAIN TAUTOMERISM OF IMIDAZOLIDINE SYSTEM
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The existance of the tautomeric equilibrium of imidazolidine system 34has been established.Due to a higher reactivity of NH group in 4, the reaction of the system 34 with PhNCO unbalances the tautomeric equilibrium, and causes an increase in the content of the open-chain urea derivative 6 in the reaction mixture.The use of isocyanates or other similar reagents, e.g., isothiocyanates, seems to be a convenient method for studies of the tautomerism in similar system.
- Witek, Stanislaw,Bielawska, Alicja,Bielawski, Jacek
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p. 1313 - 1317
(2007/10/02)
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