Cumene oxidation mechanism
Web1. Kinetic studies show that ozone undergoes chain decomposition in the course of the liquid-phase oxidation of cumene (10 −3 –10 −3 mole/liter) by ozonated oxygen. 2. A mechanism proposed to cover this oxidation shows the ozone participating in both the primary reaction and stepwise chain extension: R \dot O 2 + O 3 → R \dot O + 2O 2 ...
Cumene oxidation mechanism
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WebCumene metabolism proceeds primarily through side-chain oxida-tion, but ring oxidation also occurs in vivo. Metabolism of cumene re-sulting in side-chain oxidation of α-methylstyrene to α-methylstyrene oxide or ring oxidation to arene oxides could potentially cause DNA damage. Arene oxides can form phenols, and when the para isomers WebThe mechanism of cumene oxidation is shown in Fig. 4a [16]. In traditional processes, cumene oxidation is always carried out in the absence of catalyst, resulting in the poor …
WebNov 13, 2024 · This paper discusses the results of investigations on the kinetics of cumene oxidation to cumene hydroperoxide by molecular oxygen in the presence of N … WebCumene is oxidized with O2 in the liquid-phase according to the widely known free-radical mechanism. The main products of the cumene oxidation are acetophenone, 2-phenyl-2-propanol and CHP. The results with Cu/MgO as catalyst are shown in Fig. 4. It can be seen that the conversion of cumene increased with the copper load-ing.
WebFeb 9, 2024 · The bio-oxidation of a series of aromatic amines catalyzed by T. versicolor laccase has been investigated exploiting either commercially available nitrogenous substrates [(E)-4-vinyl aniline and diphenyl amine] or ad hoc synthetized ones [(E)-4-styrylaniline, (E)-4-(prop-1-en-1-yl)aniline and (E)-4-(((4 … WebNov 4, 2024 · Organic Chemistry
WebThe aerobic oxidation of cumene in NHPI/aldehyde system at 25 °C allows to obtain the corresponding hydroperoxide (29) with 81% selectivity (Fig. 18) [143]. In this case, aldehyde initiates the ...
WebCumene hydroperoxide is a relatively stable organic peroxide. This oxidizing agent is commercially available with a purity of ~80%. A 0.2 M solution in benzene has a half-life of 29 hours at 145°C. The decomposition products of cumene hydroperoxide are methylstyrene, acetophenone, and cumyl alcohol. Pure cumene hydroperoxide can be … flights gspWebJul 15, 2024 · Thus, a possible mechanism for the cumene oxidation and cumene hydroperoxide decomposition in the presence of Zn, Cd or Hg 2-ethylhexanoate has been substantiated. The developed model was used to study the catalytic activity and thermal stability of Zn, Cd and Hg 2-ethylhexanoates in cumene oxidation and cumene … flights gso to seattleWebJul 15, 2024 · 1. Introduction. The study of alkyl benzenes oxidation mechanism in liquid phase was started in the early years of the twentieth century. Summarizing the experimental data about oxidation of organic compounds Bach and Engler proposed an oxidation peroxide theory [1], [2], having introduced into science the idea of peroxides as labile … cherry hills high schoolWebBecause cumene is so readily oxidized by O 2, it may potentially be a good solvent to carry out simple functional group oxidation and/or oxidative coupling reactio ns through … cherry hills golf \u0026 lodgeWebDue to the considerable industrial implications, an in-depth study of cumene peroxidation using supported gold and silver nanoparticles was carried out to gain more insight into the mechanism of this reaction. Supported gold nanoparticles were found to efficiently catalyze the decomposition of cumene hydroperoxide with a selectivity of 25% at 80 °C … flights gso to stlWebAug 17, 2016 · It first overviews the cumene route, followed by a detailed description of the thermal decomposition behavior of CHP, and finally the mechanism of the liquid phase oxidation of cumene. From process safety point of view, and also to understand the auto-catalyzed mechanism in the cumene oxidation, it is necessary to describe and quantify … flights gsp to bnaWebDec 13, 2013 · The mechanism of thermal oxidation of cumene can be constructed by the analogy with other hydrocarbons oxidation mechanisms [1–3, 11–51].The most comprehensive reaction mechanism was constructed and examined by Opeida et al. [16, 17], Denisov and coworkers [3, 11, 29, 30, 34], Thomas and Tolman [], and Somma et al. … cherry hill shooting range