An Efficient and Recyclable Imidazolium Salts-Functionalized Mesoporous Catalyst for Microwave-Promoted Knoevenagel Condensations in Solid Medium

Abstract:

A convenient method for the preparation of imidazolium salts-functionalized mesoporous catalyst Me-Bmim-SBA-15 (2) by postgrafting [bmIm]OH on SBA-15 was developed. This catalyst presented excellent catalytic activities (more than 96% yields for all tested aldehydes) for Knoevenagel condensation of aldehydes and ethyl cyanoacetate under microwave irradiation in solid medium. Of particular note is that such a catalyst could be readily recovered and reused in the consecutively catalytic runs (up to 10 uses) while maintained high catalytic activity.

• Periodical: Advanced Materials Research (Volumes 347-353)
• Pages: 1944-1948
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.347-353.1944
• Online since: October 2011
• Authors: Yu Long Xu, Chuan Shou Sun, Guo Hua Liu
• Keywords: Chemical Reaction, Environmentally Benign, Microwave Heating, Nanostructure

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