Abstract In the liquid-phase oxidation of 2-isopropylnaphthalene (2-IPN) that occurs through a free-radical chain-reaction mechanism, the initiator-catalyst of the reaction system affects the oxidation rate and product distribution. The desired product of the oxidation of 2-IPN is 2-isopropylnaphthalenehydroperoxide (2-IPNHP); however, by-products such as dimethyl-2-naphthyl-carbinol and acetonaphthone can also be produced depending on the reaction conditions. In the present study, we investigated the effects of alkaline earth metal hydroxides, i.e. Ba(OH) 2 , Ca(OH) 2 , and Mg(OH) 2 ; an inorganic peroxide, i.e. H 2 O 2 ; organic peroxides, i.e. cumenehydroperoxide and benzoyl peroxide, and the UV radiation separately on the 2-IPN oxidation rate and product distribution. In this context, the data were compared with those obtained by alkali metal hydroxides, i.e. KOH, NaOH and LiOH, and by 2-IPNHP; and further, the results were explained through the reactions that occur in the oxidation reactor. Among inorganic peroxides, organic peroxides, UV-radiation, alkaline earth metal hydroxides and alkali metal hydroxides, the oxidation of 2-IPN to 2-IPNHP favours the last two groups of initiator-catalysts where KOH and Ba(OH) 2 produced 1.372 and 1.080 mol dm −3 2-IPNHP from 6.9 mol dm −3 2-IPN with 73% and 67% 2-IPNHP selectivity, respectively.

中文翻译：

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有机和无机引发剂-催化剂对2-异丙基萘液相氧化的影响

摘要 2-异丙基萘（2-IPN）的液相氧化反应通过自由基链式反应机理进行，反应体系的引发剂-催化剂影响着氧化速率和产物分布。所需的 2-IPN 氧化产物是 2-异丙基萘氢过氧化物 (2-IPNHP)；但是，根据反应条件，也可能产生副产物二甲基-2-萘基甲醇和丙酮萘。在本研究中，我们研究了碱土金属氢氧化物的影响，即Ba(OH) 2 、Ca(OH) 2 和Mg(OH) 2 ；无机过氧化物，即H 2 O 2 ；有机过氧化物，即异丙苯过氧化氢和过氧化苯甲酰，以及紫外线辐射分别对2-IPN的氧化速率和产物分布。在这种情况下，将数据与碱金属氢氧化物（即KOH、NaOH和LiOH）以及2-IPNHP获得的数据进行比较；此外，通过氧化反应器中发生的反应解释了结果。在无机过氧化物、有机过氧化物、紫外线辐射、碱土金属氢氧化物和碱金属氢氧化物中，2-IPN 氧化为 2-IPNHP 有利于最后两组引发剂-催化剂，其中 KOH 和 Ba(OH) 2 产生 1.372 和1.080 mol dm -3 2-IPNHP 从 6.9 mol dm -3 2-IPN 分别具有 73% 和 67% 的 2-IPNHP 选择性。