【摘要】 研究了[Bpy]Br-2AlCl3离子液体催化联苄与十二烯-1的烷基化反应。通过离子液体结构组成分析与实验结果对照,表明在离子液体中各种阴离子配体之间相互转化,使之酸性可调,从而具有不同程度的催化活性。使用离子液体催化剂可以降低芳烃/十二烯-1摩尔比(n(Aromatics)/n(Dodecene-1))、缩短反应时间,且产物易分离。离子液体可循环使用3次以上。较佳的反应条件为:反应温度25~30℃、n(Aromatics)∶n(Dodecene-1)=1∶2、反应时间1h。更多还原

【Abstract】 Alkylation of bibenzyl with dodecene-1 catalyzed by ionic liquids （Br-2AlCl₃） was investigated. It was found that ligand change among some anion species of ionic liquid resulted in the alteration of Lewis acidity and influenced the catalytic activity. Furthermore, the molar ratio of aromatics to dodecene-1 was reduced, reaction time was shortened, the alkylation products could be easily taken away from the ionic liquid and ionic liquid could be reused for more than three times. The optimum reaction conditions were the reaction temperature of 25-30℃, the aromatics to dodecene-1 molar ratio of 1∶2 and reaction time of 1 h.更多还原