催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (6): 485-488.

• 研究论文 • 上一篇    下一篇

［bmim］BF4/CH3ONa催化一步法合成碳酸二甲酯

陈秀芝1,胡长文1,苏俊华1,于涛2,高志明1   

  1. 1 北京理工大学理学院化学系, 北京 100081; 2 华东理工大学药学院, 上海 200237
  • 收稿日期:2006-06-25 出版日期:2006-06-25 发布日期:2010-08-28

One-Pot Synthesis of Dimethyl Carbonate Catalyzedby ［bmim］BF4/CH3ONa

CHEN Xiuzhi1, HU Changwen1*, SU Junhua1, YU Tao2, GAO Zhiming1   

  1. 1 Department of Chemistry, School of Sciences, Beijing Institute of Technology, Beijing 100081, China; 2 School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
  • Received:2006-06-25 Online:2006-06-25 Published:2010-08-28

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摘要： 在1-正丁基-3-甲基咪唑四氟硼酸盐(［bmim］BF4)和CH3ONa存在下,由环氧丙烷、甲醇和CO2合成碳酸二甲酯. 在 p=4 MPa, t=5 h和θ=150 ℃的条件下,环氧丙烷的转化率达到95%以上,碳酸异丙烯酯的选择性达到87.1%, 最重要的是,此时碳酸二甲酯的收率达到67.6%, 高于文献值.

关键词: 离子液体, 1-正丁基-3-甲基咪唑四氟硼酸盐, 甲醇钠, 二氧化碳, 环氧丙烷, 碳酸二甲酯

Abstract: The one-pot synthesis of dimethyl carbonate from propylene oxide, carbon dioxide, and methanol was investigated. The catalyst adopted was a mixture of 1-butyl-3-methylimidazolium tetrafluoroborate (［bmim］-BF4) and sodium methoxide. Under the reaction conditions of 4 MPa, 5 h, and 150 ℃, the conversion of propylene oxide was above 95%, the selectivity for propylene carbonate was 87.1%. More importantly, the yield of dimethyl carbonate reached 67.6%, which is higher than the results of the previous literature using the one-pot synthesis method.

Key words: ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate, sodium methoxide, carbon dioxide, propylene oxide, dimethyl carbonate