Oxidation of hydrocarbons by O2 in the presence of onium salts and onium ion-pair complexes as catalysts

Autooxidation of hydrocarbons with oxygen in ionic liquids as solvents

“…That is why acceleration of CHP decomposition during the oxidation process can result in acceleration of the oxidation rate. A similar effect involving the influence of tetra‐alkylammonium salts (used as phase‐transfer catalysts) on oxidation reactions has been demonstrated in the literature 8. It was shown that organic hydroperoxides were decomposed efficiently by these salts, accelerating the oxidation process.…”

Selective decomposition of cyclohexyl hydroperoxide by copper ion-containing quaternary ammonium salts in alkali-free medium

“…This result was consistent with other previous research. [18,28,29] What's more, radicals that formed by the homolytic activation of CHHP might be stabilized by BHT radical. The structures of the corresponding free radicals formed in chain initiation were studied by GC-MS preliminarily (Fig.…”

“…Recently, metal ion-containing ionic liquids, especially those based on dialkylimidazolium, N-alkylpyridinium and quaternary ammonium salts as green catalysts have aroused wide attention in many reactions [10][11][12][13][14][15][16][17]. It is reported that onium salts could promote the homolytic decomposition of CHHP into radicals [18]. Metal ion-containing ionic liquid is a kind of onium cation with metal ion-containing complex as counter anions, which may possess potential applications in the decomposition of CHHP.…”

Highly efficient and organic nitrogen‐containing cation‐promoted aerobic oxidation of alkylaromatics in the presence of N‐hydroxyphthalimide

“…7 In recent years, the use of molecular oxygen as terminal oxidant has received much attention for its economical and environmental benefits. Several metallic catalyst systems, including homogeneous FeCl 3 , 8 VO(acac) 2 , 9 a trans-Dioxoruthenium(VI) complex, 10 onium salts 11 or vanadium-substituted polyoxometalate, 12 have been employed for the aerobic oxidation of alkylaromatics. Ahn et al and Chung et al investigated the biphasic oxidation of tetralin with oxygen using a tetramethylethylene-diamine complex of manganese, chromium or nickel as catalyst and dodecyl sodium sulfate as emulsifier.…”