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锰卟啉功能化多元离子液体体系中苯乙烯及其衍生物环氧化反应

Epoxidation of Styrene and Its Derivatives Catalyzed by a Multi-component Ionic Liquid Functionalized with Manganese Porphyrin

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【作者】 张红娇刘晔蔡月琴吴海虹刘秀丽

【Author】 ZHANG Hongjiao,LIU Ye,CAI Yueqin,WU Haihong,LIU Xiuli(Shanghai Key Laboratory of Green Chemistry and Chemical Processes,Department of Chemistry,East China Normal University,Shanghai 200062,China)

【机构】 华东师范大学化学系 上海市绿色化学与化工过程绿色化重点实验室华东师范大学化学系上海市绿色化学与化工过程绿色化重点实验室上海200062

【摘要】 通过在中性锰卟啉分子中引入季铵阳离子和PF6-阴离子,制备了离子型锰卟啉化合物[MnTTMAPP][PF6]5,将其与[bmim]BF4及[bzmim]BF4混合构成锰卟啉功能化的多元离子液体复合体系(MnPy-MIL).实验发现,该体系可以高活性高选择性地催化苯乙烯及其衍生物的环氧化反应.与传统中性锰卟啉催化体系相比,离子型锰卟啉的抗氧化降解能力提高,卟啉自身聚合受到抑制,催化反应无需有机溶剂和轴向配体的参与,同时催化剂可以循环使用.少量水的存在可以提高MnPy-MIL体系的催化性能.

【Abstract】 The ionic manganese porphyrin bearing trimethylbenzylammonium cation and PF-6 anion ([MnTTMAPP [PF6 5) was mixed with the ionic liquids of [bzmim BF4 and [bmim BF4 to build up a manganese porphyrin-functionalized multi-component ionic liquid (MnPy-MIL),which was used as a catalytic system for expoxidation of styrene and its derivatives with oxidant PhIO. Compared with the traditional neutral manganese porphyrin,the MnPy-MIL system has advantages of suppression of oxidation degradation and self-aggregation,recyclability,and no requirements of additional axial ligands and organic solvents. The presence of a small amount of water could improve the catalytic performance of MnPy-MIL.

【关键词】 离子液体卟啉苯乙烯环氧化反应
【Key words】 ionic liquidmanganeseporphyrinstyreneepoxidation
【基金】 国家自然科学基金(20673039,20533010,20590366);上海市科委重点基础研究(06JC14023);上海市重点学科建设项目(B409)
  • 【文献出处】 催化学报 ,Chinese Journal of Catalysis , 编辑部邮箱 ,2008年02期
  • 【分类号】O621.25;O643.32
  • 【被引频次】7
  • 【下载频次】439
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