Iron oxide on carbon‐based supports as efficient catalysts for organic compounds oxidation

Abstract

For the first time, iron oxide on carbon aerogel, amine functionalized carbon nanotube, black carbon and carboxylic acid functionalized carbon nanotube in the presence of H 2 O 2 was reported as an efficient and stable catalyst for the selective oxidation of sulfides and alcohols. The catalysts were characterized by scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy and atomic absorption spectroscopy. In the next step, catalytic reactivity toward sulfide to sulfoxide and alcohol to aldehyde/ketone oxidation in the presence of H 2 O 2 was studied and discussed.

Post-synthetic Mechanochemical Incorporation of Al-Species into the Framework of Porous Materials: Toward More Sustainable Redox Chemistries

“…The selective oxidation of alcohols and sulfides to aldehydes and sulfoxides are among the two most relevant chemistries in organic synthesis to provide access to useful compounds with extensive applications in herbicides, pharmaceuticals, fragrances, and related industries. , Such chemistries (e.g., benzyl alcohol oxidation to benzaldehyde; diphenyl sulfide to diphenyl sulfoxide) have been extensively reported using a range of nanoparticle systems (mostly noble metals with only very few examples of transition metals, as well as noble metal-containing mesoporous materials). − However, despite some examples on certain catalytic systems based on cheap and sustainable transition metals (Fe, W, Cu, etc. ), − there are no reports on the utilization of Al-containing mesoporous materials in mild selective oxidations of alcohols or sulfides. Our group just recently reported the first available report on designed hierarchical Al-containing zeolites for mild oxidation reactions, following a simple and environmentally friendly protocol for benzyl alcohol oxidation using alkali-treated ZSM-5 zeolites .…”

Efficient Liquid‐Assisted Grinding Selective Aqueous Oxidation of Sulfides Using Supported Heteropolyacid Catalysts

“…Several methodologies have been reported in sulfoxidation reactions using a wide range of heterogeneous catalysts. Representative examples include transition metal functionalized graphene oxide, Keplerate polyoxometalates ionic liquid complexes, iron oxides on carbon‐based supports, transition‐metal oxide clusters, tungsten (VI) organic complexes and carbon supported polyoxometalates . Among the different employed catalysts, heteropolyacids (HPA) are useful in oxidation reactions due to their strong Brønsted acidity and redox properties.…”