Iranian Research Organization for Science and Technology Journal of Particle Science and Technology 2423-4087 9 1 2023 05 01 Fe3O4@SiO2/AEPTMS/Fe(OTf)3: An efficient superparamagnetic nanocatalyst for the protecting of alcohols 1 9 1276 10.22104/jpst.2023.6188.1224 EN Somayeh Mehdigholami Institute of Nanoscience and Nanotechnology, University of Kashan, Iran Esmaeil Koohestanian Department of Chemical Engineering, Islamic Azad University, Iranshahr Branch, Iranshahr, Iran 0000-0002-3333-6630 Journal Article 2023 03 21 Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>/AEPTMS/Fe(OTf)<sub>3</sub> is a stable, effective, and magnetic nanocatalyst easily prepared and characterized using FT-IR spectroscopy, SEM, TEM, and VSM techniques. This nanocatalyst was successfully applied for trimethylsilylation of numerous alcohols (primary, secondary, and tertiary alcohols) with hexamethyldisilazane in 1 ml dichloromethane at room temperature to their corresponding trimethylsilyl (TMS) ethers. Quick response times and a simple reprocessing procedure are two fascinating advantages of this nanocatalyst. This catalyst protects alcohols at 1.5 min, and turn-over frequency (TOF) values for the presented catalytic system have been estimated 833 h<sup>-1</sup>. Hydroxy compounds Magnetic iron oxide nanoparticles Catalytic activity https://jpst.irost.ir/article_1276_fb60d411a5c5b72b2e7d3527cfc84fd0.pdf