催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (2): 102-104.

• 研究快讯 • 上一篇    下一篇

Ti-MWW/H2O2体系催化官能化烯烃环氧化

李宁宁,刘月明,吴海虹,李晓红,谢伟,赵忠林,吴鹏,何鸣元   

  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 Various Functionalized Olefins by a Ti-MWW/H2O2 Catalytic System

LI Ningning, LIU Yueming, WU Haihong, LI Xiaohong, XIE Wei, ZHAO Zhonglin, WU Peng*, HE Mingyuan   

  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

737

被引次数

18

摘要： 研究了Ti-MWW/H2O2催化体系对多种官能化烯烃液相环氧化的催化性能. 结果表明,与钛硅分子筛TS-1相比, Ti-MWW具有更高的催化活性和环氧化产物选择性. 溶剂对Ti-MWW催化环氧化反应的活性影响较大,其中水是催化丙烯酸乙酯和乙酸烯丙酯的最佳溶剂,随着C=C双键相邻官能团吸电子能力的增强,环氧化反应的催化活性下降.

关键词: Ti-MWW, TS-1, 官能化烯烃, 环氧化

Abstract: The catalytic properties of Ti-MWW catalysts for the epoxidation of olefins with different functional groups using hydrogen peroxide as an oxidant were studied. Ti-MWW shows higher olefin conversion and epoxide selectivity than the conventional titanosilicate TS-1. Solvents influence the catalytic activity of Ti-MWW, and water is the best one in the epoxidation of ethyl acrylate and allyl acetate. The functional groups with high eletrophilicity and adjacent to the C=C bonds retard the catalytic activity for olefin epoxidation.

Key words: Ti-MWW, TS-1, functionalized olefin, epoxidation