Chemistry of Heterocyclic Compounds

, Volume 3, Issue 2, pp 513–515 | Cite as

The problem of the tautomerism of 2-iminothiazolidin-4-one and some of its derivatives

  • N. N. Khovratovich
  • I. I. Chizhevskaya


IR spectroscopy is used to investigate imino-amine tautomerism of 2-iminothiazoliin-4-one and 2-phenyl (p-tolyl, benzyl)imino derivatives of thiazolidin-4-one. It is shown that in the crystalline state 2-iminothiazolidin-4-one exists in the 2-imino form, while in solution (chloroform) it exists in the amino form. 2-Phenyl- and 2-p-tolylimino derivatives of thiazolidin-4-one exist in the imino form, while 2-benzyl-iminothiazolidin-4-one exist in the amino form.


Imino Amino Form Imino Form Endocyclic Nitrogen Atom Exocyclic Nitrogen Atom 
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Copyright information

© The Faraday Press, Inc. 1969

Authors and Affiliations

  • N. N. Khovratovich
    • 1
  • I. I. Chizhevskaya
    • 1
  1. 1.Minsk Institute of Physical Organic Chemistry AS Belorussian SSRLenin Belorussian State UniversityMinsk

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