Role of quaternary ammonium salts in the liquid-phase oxidation of ethylbenzene to hydroperoxide with molecular oxygen

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.…”

The effect of common agrichemicals on the environmental stability of polyethylene films

“…However, bulky cations may affect the formation of these radical species. It has been found [30] that the autoxidation of ethylbenzene was initially inhibited in the presence of quarternary ammonium salts with bulky cations due to decomposition of ethylbenzene hydroperoxides to by-products such as acetophenone and 1-phenylethanol.…”

“…In the presence of ammonium halide compounds, which may include Paraquat (Figure 2), decomposition of hydroperoxides to form alkoxy and halide radicals has been proposed [29,30]. These radicals may act as initiators in the autoxidation of hydrocarbons such as polyethylene.…”

“…14 the type of counter-ion present [28][29][30]. In the presence of ammonium halide compounds, which may include Paraquat (Figure 2), decomposition of hydroperoxides to form alkoxy and halide radicals has been proposed [29,30].…”

An Oxygen‐Deficient Perovskite as Selective Catalyst in the Oxidation of Alkyl Benzenes

“…[1][2][3][4] However, the reaction conditions are often harsh, the reagent mixtures are corrosive (Cl À or Br À ), and the reactions are frequently unselective. Therefore, the selective transformation of hydrocarbons, especially saturated hydrocarbons such as alkanes, to valuable oxygenated compounds constitutes an extremely important area of the contemporary industrial chemistry.…”