Chemistry of Heterocyclic Compounds

, Volume 18, Issue 9, pp 978–982 | Cite as

Synthesis and ring-chain tautomerism of salts of alkylidene(arylidene) derivatives of amidrazones

  • V. A. Khrustalev
  • V. P. Sergutina
  • K. N. Zelenin
  • V. V. Pinson


A number of salts of alkylidene (arylidene) derivatives of amidrazones was obtained by the reaction of S-methylthioamidium iodides with hydrazones of monocarbonyl compounds. According to the 1H and 13C NMR data, these compounds in solutions are capable of ring-chain tautomerism of the 1-alkylideneamidrazone-1,2,4-triazoline type. The position of the equilibrium is determined chiefly by steric interactions of the substituents attached to the C-N2 bond.


Organic Chemistry Iodide Hydrazones Steric Interaction Monocarbonyl 
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Copyright information

© Plenum Publishing Corporation 1983

Authors and Affiliations

  • V. A. Khrustalev
    • 1
  • V. P. Sergutina
    • 1
  • K. N. Zelenin
    • 1
  • V. V. Pinson
    • 1
  1. 1.S. M. Kirov Military Medical AcademyLeningrad

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