催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (2): 127-133.

• 研究论文 • 上一篇    下一篇

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

张红娇,刘晔,蔡月琴,吴海虹,刘秀丽   

  1. 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
  • 收稿日期:2008-02-25 出版日期:2008-02-25 发布日期:2012-01-15

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

ZHANG Hongjiao, LIU Ye*, CAI Yueqin, WU Haihong, LIU Xiuli   

  1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
  • Received:2008-02-25 Online:2008-02-25 Published:2012-01-15

PDF

1040

被引次数

16

摘要： 通过在中性锰卟啉分子中引入季铵阳离子和PF-6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.

关键词: 离子液体, 锰, 卟啉, 苯乙烯, 环氧化反应

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.

Key words: ionic liquid, manganese, porphyrin, styrene, epoxidation