Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 897, Issue -, Pages 200-206Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2019.06.036
Keywords
Vanadyl acetylacetonate; Magnetic nanocatalyst; Oxidation; Alkenes; Sulfides
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Funding
- Sharif University of Technology
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A new magnetically separable nanocatalyst was successfully synthesized by immobilizing of vanadyl acetylacetonate complex, [VO(acac)(2)], onto silica coated magnetite nanoparticles previously functionalized with 3-aminopropyltriethoxysilane (3-APTES) and reacted by 5-bromosalicylaldehyde to form Schiff base moiety. The obtained nanocatalyst was characterized by elemental analysis (CHN), FT-IR spectroscopy, Powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), inductively coupled plasma optical emission spectrometry (ICP-OES) and thermogravimetric analysis (TGA). Eventually, the resulting nanoparticles were used as catalyst for epoxidation of alkenes and oxidation of sulfides using tert-butyl hydroperoxide (TBHP) as an oxidant. (c) 2019 Elsevier B.V. All rights reserved.
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