期刊
RSC ADVANCES
卷 7, 期 85, 页码 53861-53870出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra10692k
关键词
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资金
- Natural Science Foundation of Jiangsu Province (China) [BK20150282]
- Innovation and Entrepreneurship Training Program for Undergraduates in Jiangsu Province [201713985010Y, 201710332051X]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
A novel magnetic nanoparticle supported basic ionic liquid was successfully prepared by covalently anchoring 1-(2'-piperidyl) ethyl-3-(3-propyltriethoxysilane) imidazolium chloride onto the surface of silica-coated Fe3O4 nanoparticles, and characterized by FT-IR, TEM, XRD, TGA, VSM and elemental analysis. The obtained supported ionic liquid was certified as a versatile and robust catalyst for the unsymmetrical Hantzsch reaction and Knoevenagel condensation under solvent-free conditions. Furthermore, the catalyst could be conveniently recovered by an external magnet and reused six times without significant loss of catalytic activity.
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