Chin. J. Org. Chem. ›› 2013, Vol. 33 ›› Issue (08): 1791-1797.DOI: 10.6023/cjoc201212031 Previous Articles     Next Articles

Articles

新型固载碱性功能化离子液体的制备、表征及其在Henry反应中的应用

赵东旺a,b, 吴悦彤a, 陈婷婷a, 戴立益a, 王媛媛a   

  1. a 华东师范大学化学系 上海 200241;
    b 郑州师范学院化学系 郑州 450044
  • 收稿日期:2012-12-20 修回日期:2013-02-09 发布日期:2013-04-07
  • 通讯作者: 戴立益, 王媛媛 E-mail:yywang@chem.ecnu.edu.cn
  • 基金资助:

    国家自然科学基金(Nos. 21073064/B030302, 21003049/B030301)资助项目.

Efficient and Convenient Synthesis of Ionic Liquid Supported SBA-15 Mesoporous Srganosilica and Its Beneficial Applications in Henry Reaction

Zhao Dongwanga,b, Wu Yuetonga, Chen Tingtinga, Dai Liyia, Wang Yuanyuana   

  1. a Department of Chemistry, East China Normal University, Shanghai 200241;
    b Department of Chemistry, Zhengzhou Normal University, Zhengzhou 450044
  • Received:2012-12-20 Revised:2013-02-09 Published:2013-04-07
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21073064/B030302, 21003049/B030301).

Compared with post-grafting method, a novel and controllable strategy is applied to introduce highly dispersed ionic liquid species into mesoporous SBA-15 silica, providing simpler synthesis steps, more uniform surface coverage and higher loading of ionic liquid, with fewer raw materials. Basic task-specific ionic liquids are synthesized and characterized by X-ray diffraction, N2 adsorption-desorption, thermogravimetry and fourier transform infrared spectroscopy. The results showed that the catalysts, prepared by co-condensation method, have better ordered mesostructure and higher loading of ionic liquid than those by post-grafting approach. Meanwhile, the catalysts exhibit much higher activity than those by post-grafting approach in Knoevenagel condensation. Furthermore, these supported catalysts are also proven to be efficient and reusable in Henry reaction under solvent-free conditions.

Key words: supported catalyst, ionic liquid, SBA-15, Knoevenagel condensation, Henry reaction