Kinetics and mechanism of decomposition of dibenzoylfuroxane

Capa

Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

The kinetics of decomposition of dibenzoyl furoxane (DBFO) in a melt and in dilute solutions in biphenyl and nitrobenzene at a temperature of 116–141 °C was studied by the calorimetric method. As a result of the decomposition of DBFO, a substance is formed, which by its nature is also furoxane, but differs in a more complex structure and a higher decomposition temperature. The high rate and unusual composition of the decomposition products of DBFO are explained within the framework of the biradical mechanism of decomposition of furoxanes.

Texto integral

Acesso é fechado

Sobre autores

G. Nazin

FRC PCP MC of the Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Rússia, Chernogolovka, Moscow region

A. Kazakov

FRC PCP MC of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: akazakov@icp.ac.ru
Rússia, Chernogolovka, Moscow region

A. Nabatova

FRC PCP MC of the Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Rússia, Chernogolovka, Moscow region

G. Shilov

FRC PCP MC of the Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Rússia, Chernogolovka, Moscow region

L. Fershtat

Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Rússia, Moscow

A. Larin

Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences

Email: akazakov@icp.ac.ru
Rússia, Moscow

Bibliografia

  1. V.G. Prokudin, G.M. Nazin, G.B. Manelis, Dokl. Akad. Nauk SSSR. 255, 917 (1980) [in Russian].
  2. G.M. Nazin, A.I. Kazakov, A.V. Nabatova et al., Russ. J. Phys. Chem. B. 18(2), 456 (2024). https://doi.org/10.1134/S1990793124020283
  3. A.I. Kazakov, D.B. Lempert, A.V. Nabatova et al., Russ. J. Phys. Chem. B. 17(3), 673 (2023). https://doi.org/10.1134/S1990793123030041
  4. A.I. Kazakov, D.B. Lempert, A.V. Nabatova et al., Russ. J. Phys. Chem. B. 17(5), 1083 (2023). https://doi.org/10.1134/S1990793123050032
  5. A.I. Kazakov, D.B. Lempert, A.V. Nabatova et al., Russ. J. Phys. Chem. B. 18(2), 436 (2024). https://doi.org/10.1134/S199079312402009X
  6. A.I. Kazakov, D.B. Lempert, A.V. Nabatova et al., Russ. J. Phys. Chem. B. 18(2), 450 (2024). https://doi.org/10.1134/S1990793124020210
  7. D.R. Brittelli, G.A. Boswell Jr. J. Org. Chem. 46, 316 (1981). https://doi.org/10.1021/jo00315a018
  8. G. Barbaro, A. Battaglis, A. Dondoni. J. Chem. Soc. B. 588 (1970). https://doi.org/10.1039/J29700000588
  9. H.R. Snyder, N.E. Boyer. JACS. 77, 4233 (1955). https://doi.org/10.1021/ja01621a021
  10. L.N. Galperin, Yu.R. Kolesov, L.B. Mashkinov, Yu.E. Turner. In Proceedings of the Sixth All-Union Conference on Calorimetry (Metsniereba, Tbilisi, 1973), P. 539 [in Russian].
  11. S.W. Benson, Thermochemical Kinetics. (John Wiley and Sons, INC. New York-London-Sydney, 1968).
  12. M. Mellini, S. Merlino. Acta Cryst. B32, 1079 (1976). https://doi.org/10.1107/S0567740876004706

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML
Baixar
2. Fig. 1. Kinetic curves of DBPO decomposition at different temperatures (°C): 1 – 116.0; 2 – 121.4; 3 – 125.4; 4 – 130.8 (m = 20 mg); 5 – 130.8 (m = 200 mg); 6 – 136.2.

Baixar (112KB)
Metadados
3. Fig. 2. Kinetic curves of DBPO decomposition in a 1% solution in DF at the following temperatures (°C): 1 – 116.0, 2 – 121.4, 3 – 125.4, 4 –130.8.

Baixar (95KB)
Metadados
4. Fig. 3. Kinetic curves of DBPO decomposition in a 1% solution in NB at the following temperatures (°C): 1 – 116.0, 2 – 121.4, 3 – 125.4, 4 –130.8, 5 – 136.2.

Baixar (102KB)
Metadados
5. Fig. 4. Kinetic curves of DBPO decomposition at 141.2 °C and m/V = 10–3 g/cm3.

Baixar (67KB)
Metadados
6. Fig. 5. Kinetic curves of DBPO decomposition in DF solution at 141.2 °C and a concentration of 8.7 · 10-1 mol/l.

Baixar (70KB)
Metadados
7. Fig. 6. Kinetic curves of decomposition at 209.4 °C of the final product obtained by decomposition of DBPO at 141.2 °C. Points – experiment, lines – calculation using the 1st order equation; 1 – pure DBPO, k1 = 2.3 10–4 s–1; 2 – DBPO solution in NB, k1 = 2.5 10–4 s–1.

Baixar (74KB)
Metadados
8. Fig. 7. Scheme of the decomposition reaction of DBPO.

Baixar (112KB)
Metadados

Declaração de direitos autorais © Russian Academy of Sciences, 2025