Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
59447 | Chinese Journal of Catalysis | 2014 | 7 Pages |
Polyvinyl amine coated Fe3O4@SiO2 composite microspheres with a core-shell structure were prepared and employed as a magnetic catalyst for Knoevenagel condensation under mild conditions. The catalyst can be readily recovered using a magnet and reused several times without loss in activity or selectivity. The performance of the magnetic base catalyst was compared with that of polyvinyl amine functionalized mesoporous SBA-15, which showed that the magnetic nanoparticles gave improved reaction rate and yield.
Graphical AbstractPolyvinyl amine coated Fe3O4@SiO2 was prepared by a simple method. This new magnetic catalyst exhibited high catalytic activity in Knoevenagel condensation of various aromatic and aliphatic aldehydes under mild conditions along with excellent level of reusability.Figure optionsDownload full-size imageDownload as PowerPoint slide