Russian Chemical Bulletin

, Volume 63, Issue 1, pp 280–283 | Cite as

Ene reaction between 4-phenyl-1,2,4-triazoline-3,5-dione and hex-1-ene. The enthalpies, entropies, and volumes of activation and reaction in solution

  • V. D. Kiselev
  • H. A. Kashaeva
  • L. N. Potapova
  • D. A. Kornilov
  • A. I. Konovalov
Brief Communications


The rates of an ene reaction between 4-phenyl-1,2,4-triazoline-3,5-dione and hex-1-ene were studied in a temperature range of 15–40 °C and in a pressure range of 1–2013 bar. The enthalpy of reaction in 1,2-dichloroethane (−158.2±1.0 kJ mol−1), the enthalpy (51.3±0.5 kJ mol−1), entropy (122±2 J mol−1 K−1), and volume of activation (−31.0±1.0 cm3 mol−1), and the volume of this reaction (−26.6±0.3 cm3 mol−1) were determined. The high exothermic effect of the reaction suggests its irreversibility.

Key words

ene reaction 4-phenyl-1,2,4-triazoline-3,5-dione hex-1-ene kinetics thermochemistry high pressure 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • V. D. Kiselev
    • 1
  • H. A. Kashaeva
    • 1
  • L. N. Potapova
    • 1
  • D. A. Kornilov
    • 1
  • A. I. Konovalov
    • 2
  1. 1.A. M. Butlerov Chemical InstituteKazan Federal UniversityKazanRussian Federation
  2. 2.A. E. Arbuzov Institute of Organic and Physical ChemistryKazan Research Center of the Russian Academy of SciencesKazanRussian Federation

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