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本文利用ENDOR和ESR技术检测和鉴定在F—C芳烃烷基化体系中出现的自由基.研究结果表明,所检测到的自由基都属于多核芳烃正离子自由基,即在F-C反应中生成的烷基芳烃化合物通过分子间的Scholl缩合反应生成的多核芳烃被三氯化铝氧化生成的正离子自由基,文中还讨论了多核芳烃的生成及其转变为正离子自由基的机理.
In this paper, we use ENDOR and ESR to detect and identify the free radicals in the F-C arene alkylation system.The results show that all the detected free radicals belong to the polynuclear aromatics positive ion radical, which is generated in the FC reaction Alkylaromatics Compounds generated by the Scholl condensation between molecules of polynuclear aromatics are generated by the oxidation of aluminum chloride generated by the positive ion radicals, also discussed the formation of polynuclear aromatics and its conversion to positive ion free radicals mechanism.