高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (7): 1325.

• 研究简报 • 上一篇    下一篇

Dawson结构杂多酸盐催化合成碳酸丙烯酯

王春刚1, 姜春杰1, 胡长文1,2   

  1. 1. 东北师范大学多酸化学研究所, 长春 130024;
    2. 北京理工大学理学院化学系, 北京 100081
  • 收稿日期:2003-08-12 出版日期:2004-07-24 发布日期:2004-07-24
  • 通讯作者: 胡长文(1955年出生),男,教授,从事无机化学与催化化学研究.E-mail:huchw@nenu.edu.cn E-mail:huchw@nenu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20331010,20271007);高等学校博士学科点专项科研基金(批准号:20030007014)资助

Synthesis of Propylene Carbonate Catalyzed by Dawson-type Polyoxometalate

WANG Chun-Gang1, JIANG Chun-Jie1, HU Chang-Wen1,2   

  1. 1. Institute of Polyoxometalate Chemistry, Northeast Normal University, Changchun 130024, China;
    2. Department of Chemistry, College of Science, Beijing Institute of Technology, Beijing 100081, China
  • Received:2003-08-12 Online:2004-07-24 Published:2004-07-24

摘要: 碳酸丙烯酯(PC)是一种性能优良的高沸点、高极性的有机溶剂,在有机合成、化妆品、电池电解质和脱碳溶剂等领域中具有重要应用.

关键词: 二氧化碳, 环氧丙烷, 碳酸丙烯酯, Dawson杂多酸, 环加成

Abstract: In the presence of Dawson-type polyoxotungstate, α 2-[(n-C4H9)4](11-n)P2W17O 61(Mn+·Br)[abbreviated as P2W17M·Br, M=Co(Ⅱ), Mn(Ⅲ), Cu(Ⅱ)] and saturated [(C4H9)4N]6P2W18O62(abbreviated as P2W18), cycloaddition reaction of carbon dioxide to propylene oxide were studied under moderate reaction conditions without any additional organic solvents. The experimental results indicated that the synthesis of propylene carbonate was completed in 98% yield and 100% selectivity by using {P2W17Co·Br} as the catalyst, while the P2W18 complex showed the lowest catalytic activity with less than 1% yield of propylene carbonate. The dependency of the catalytic activity on transition metal of mono-substituted polyoxometalate, P2W17M·Br, as well as the nucleophilicity of the bromide ion was concluded from the process analysis.

Key words: Carbon dioxide, Propylene oxide, Propylene carbonate, Dawson polyoxometalate, Cycloaddition

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