能源化学(英文版)

能源化学(英文) ›› 2013, Vol. 22 ›› Issue (4): 599-604.

• Articles • 上一篇    下一篇

Effect of solvent on catalytic performance of anhydrous catalyst in acetylene dimerization to monovinylacetylene

Jianguo Liu, Minghan Han, Zhanwen Wang   

  1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2012-04-15 修回日期:2012-05-13 出版日期:2013-07-20 发布日期:2013-07-27
  • 通讯作者: Minghan Han
  • 基金资助:

    This work was supported by the National Basic Research Program of China (No. 2009CB219901).

Effect of solvent on catalytic performance of anhydrous catalyst in acetylene dimerization to monovinylacetylene

Jianguo Liu, Minghan Han, Zhanwen Wang   

  1. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2012-04-15 Revised:2012-05-13 Online:2013-07-20 Published:2013-07-27
  • Supported by:

    This work was supported by the National Basic Research Program of China (No. 2009CB219901).

摘要： The production of monovinylacetylene (MVA) through Cu(I)-catalyzed acetylene dimerization reaction was performed in different reaction media. Based on the analyses of crystals precipitated from the catalyst solution and UV-Vis spectra of the catalysts, the reaction mechanism and solvent dependence were studied. The highest yield of MVA can be obtained when dimethylformamide is used as solvent because of its strong coordination ability to Cu(I). The activation of C≡C bond is presumed to be improved when the catalytic metal ion is coordinated by a solvent with less steric hindrance and electron-rich coordination atom. The results of the present study provide a possible way to accelerate the metal-catalyzed homogeneous reaction of alkyne substrates through careful selection of a solvent.

关键词: acetylene, monovinylacetylene, dimerization reaction, solvent

Abstract: The production of monovinylacetylene (MVA) through Cu(I)-catalyzed acetylene dimerization reaction was performed in different reaction media. Based on the analyses of crystals precipitated from the catalyst solution and UV-Vis spectra of the catalysts, the reaction mechanism and solvent dependence were studied. The highest yield of MVA can be obtained when dimethylformamide is used as solvent because of its strong coordination ability to Cu(I). The activation of C≡C bond is presumed to be improved when the catalytic metal ion is coordinated by a solvent with less steric hindrance and electron-rich coordination atom. The results of the present study provide a possible way to accelerate the metal-catalyzed homogeneous reaction of alkyne substrates through careful selection of a solvent.

Key words: acetylene, monovinylacetylene, dimerization reaction, solvent