Sequence studies in liquid-phase hydrocarbon oxidation. I. Alcohol-ketone transition in the oxidation of ethylbenzene

Abstract

The consumption of labeled methylphenylcarbinol during the liquid-phase oxidation of ethylbenzene at 120" has been investigated. Oxidation of the carbinol yielded only acetophenone, but most of the latter was formed directly, by the termination reaction and by decomposition of hydroperoxide molecules. Use of the modified kinetic isotope method permitted quantitative calculation of rates of formation of alcohol and ketone molecules by various routes.

Chemiluminescence simulation method for the evaluation of the termination rate constant for 2‐cyanopropyl peroxy and α‐phenyl‐ethyl peroxy radicals

“…The materials used in this work have been purified as described earlier [9,10]. The apparatus consisted of a lighttight compartment with provisions for thermostatting, oxygen inlet, cooling of gas outlet, and a sampling device used at present for the successive addition of EB.…”

Liquid phase oxidation of α‐pinene. Influence of sodium hydroxide as additive

“…The diminishing qaximum concentration of u-pinene hydroperoxide with the increase in temperature can be attributed to the thermal stability of this substance, whose decomposition (thermal or induced) is favoured by increased temperature. 16-" Finally, it should be noted that the absence of an induction period, under any of the conditions used, suggests a fast reaction, although from a gas-liquid kinetic standpoint the oxidation is catalogued as slow.…”