Abstract
The facile two-step preparation procedure of a novel magnetic nano-solid acid catalyst is described, which includes grafting an ionic liquid onto Fe3O4 nanoparticles, followed by the sulfonation of phenyl groups in the ionic liquid. The catalytic performance of this novel material has been systematically studied in the acetal formation of benzaldehyde and ethylene glycol. The experimental results testify this catalyst possesses high catalytic activity with a yield of 97% under mild reaction conditions. Furthermore, the catalyst is readily separated using a permanent magnet and it is reusable without any significant decrease in catalytic activity.
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Acknowledgments
We thank key project of Shanghai Science and Technology Committee (no. 05JC14070, 06DZ05025, 08JC1408600) for financial support.
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Wang, P., Kong, A., Wang, W. et al. Facile Preparation of Ionic Liquid Functionalized Magnetic Nano-Solid Acid Catalysts for Acetalization Reaction. Catal Lett 135, 159–164 (2010). https://doi.org/10.1007/s10562-010-0271-x
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DOI: https://doi.org/10.1007/s10562-010-0271-x