Acid-catalyzed multiple chain termination on nitroxyl radicals in H2O2-containing oxidizing ethylbenzene

Autor:	E. T. Denisov, N. A. Ermakova, V. I. Gol'denberg
Rok vydání:	1990
Předmět:	chemistry.chemical_compound chemistry Oxidizing agent Molecule Protonation Nitroxyl General Chemistry Hydrogen peroxide Chain termination Photochemistry Ethylbenzene Medicinal chemistry Catalysis
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:651-656
ISSN:	1573-9171 0568-5230
Popis:	An intensive chain termination has been observed in oxidizing ethylbenzene, caused by the system nitroxyl radical + hydrogen peroxide + acid. The nitroxyl radical and the acid act as inhibition catalysts, while H2O2 is consumed, by terminating two chains per molecule. A new mechanism has been proposed for the catalytic chain termination in the system studied. It includes protonation of >NO., its oxidation by the peroxyl radical to >NO+, reduction of the latter by H2O2 to >NOH, and the reaction of RO2. with >NOH with regeneration of >NO.. Kinetic estimations have been obtained for the individual stages of the complex inhibition process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77fa87805d1e70dd42d90fad9b65d247 https://doi.org/10.1007/bf00960319 Zobrazit plný text záznamu Full text from SpringerLink