Chin. J. Org. Chem. ›› 2006, Vol. 26 ›› Issue (05): 610-617. Previous Articles     Next Articles

Review

超临界二氧化碳参与的两相体系及其在有机合成反应中的应用

岳晓东,何良年*   

  1. (南开大学元素有机化学研究所 元素有机化学国家重点实验室 天津 300071)
  • 收稿日期:2005-05-08 修回日期:2005-10-08 发布日期:2006-04-28
  • 通讯作者: 何良年

Progress in the Study of Biphasic Systems Prompted by Supercritical Carbon Dioxide and Their Applications to Organic Syntheses

YUE Xiao-Dong,HE Liang-Nian*   

  1. (State Key Laboratory of Elemento-organic Chemistry, Institute of Elemento-organic Chemistry,
    Nankai University, Tianjin 300071)
  • Received:2005-05-08 Revised:2005-10-08 Published:2006-04-28
  • Contact: HE Liang-Nian

While homogeneous catalysts offer many advantages, including high activity and selectivity, they generally present problems at the separation stage of a process, both in product purification and in catalyst recovery. Biphasic systems can provide one way to deal with these problems. The biphasic catalysis systems using supercritical carbon dioxide (scCO2) as the continuous phase and another green reaction medium, such as water, ionic liquid, polyethylene glycol, respectively, as the stationary catalyst phase are described herein for the metal-mediated chemical reactions. An important advantage of adopting scCO2 with those biphasic systems from an engineering point of view was the possibility to combine reaction and separation into only one integrated process, namely the so-called homogeneously reacted while heterogeneously separated process. Recent progress in this field is reviewed in this paper.

Key words: biphasic system, homogeneous catalysis, catalyst recycling, supercritical carbon dioxide