离子液体催化二苯醚与正十二烯单烷基化反应的研究  

Monoalkylation of Diphenyl Oxide with 1-Dodecene Catalyzed by Ionic Liquid

作　　者：黄玉萍[1] 严峰[1] 赵濉[1] 安静仪[1] 俞稼镛[1] 

机构地区：[1]中国科学院理化技术研究所

出　　处：《石油化工》2005年第7期622-625,共4页Petrochemical Technology

基　　金：国家重点基础研究规划资助项目(G19990225)

摘　　要：研究以氯代1-丁基-3-甲基咪唑氯铝酸盐([BM IM]C l-A lC l3)离子液体为催化剂催化二苯醚与正十二烯的单烷基化反应,采用气-质联用技术对产物进行分析,考察反应温度、离子液体与正十二烯的摩尔比以及离子液体中A lC l3的摩尔分数(即离子液体的酸强度)等反应条件对产物选择性的影响。实验结果表明,反应温度的升高有利于4-位异构体的生成;当反应温度为80℃、离子液体与正十二烯的摩尔比为0.50、离子液体的酸强度为0.67时,产物十二烷基二苯醚中5-位和6-位异构体的选择性最高,可达33.99%。Monoalkylations of diphenyl oxide with 1-dodecene catalyzed by ionic liquid 1-butyl-3-methylimidazolium aluminum chloride {[BMIM]Cl-AlCl3} was studied. Effects of reaction temperature, mole ratio of ionic liquid to 1-dodecene and mole fraction of aluminum chloride in catalyst on product selectivity were investigated. With increasing reaction temperature, selectivity of 4- dodecyl diphenyl oxide increased. A high selectivity of 33.99% of 5- and 6- dodecyl diphenyl oxide could be obtained at 80°C when mole ratio of ionic liquid to 1-dodecene was 0.50 and mole fraction of aluminum chloride in ionic liquid was 0.67.

关 键 词：离子液体 二苯醚 正十二烯 单烷基化反应 选择性 十二烷基二苯醚 

分 类 号：TQ203.4[化学工程—有机化工]