Iron(III) Amine Bis(phenolate) Complex Immobilized on Silica‐Coated Magnetic Nanoparticles: A Highly Efficient Catalyst for the Oxidation of Alcohols and Sulfides

Abstract

We aimed to immobilize a complex of iron(III) amine bis(phenolate) on silica‐coated magnetic nanoparticles as a new magnetically recoverable catalyst (Fe3O4@SiO2‐APTES‐FeLGDC). Both the chemical nature and the structure of catalyst were confirmed by using field‐emission transmission electron microscopy, field‐emission scanning electron microscopy, FTIR spectroscopy, thermogravimetric analysis, vibrating sample magnetometry, X‐ray photoelectron spectroscopy, XRD, atomic absorption spectroscopy, and elemental analysis. This sustainable catalyst leads to the efficient oxidation of a wide range of alcohols and sulfides with excellent conversion and selectivity under a mild conditions to their corresponding oxidized products, acids (or ketones) and sulfoxides, respectively. Furthermore, the stability of the structure and morphology of our efficient recyclable system was investigated, and all of the data proved that the complex was anchored firmly to the magnetite nanoparticles.

Organic Solvent-Free Olefins and Alcohols (ep)oxidation Using Recoverable Catalysts Based on [PM12O40]3− (M = Mo or W) Ionically Grafted on Amino Functionalized Silica Nanobeads

“…With SiO 2 @NH 2 and SiO 2 @PM vibrations were observed at 1495 cm −1 for CH 2 and 2832 cm −1 for –CH stretching mode [74]. Very small vibrations corresponding the NH 2 at 2930–3700 cm −1 for –NH stretching mode and 1485 cm −1 for NH 2 bending mode were observed for SiO 2 @NH 2 [75,76].…”

Insights into the Recent Synthetic Advances of Organoselenium Compounds

“…Organoselenium compounds have also been explored as part of heterogenous nanocatalytic systems for several synthetic transformations [161–163] . To that end, Firouzeh et.…”

Magnetic crosslinked copoly(ionic liquid) nanohydrogel supported palladium nanoparticles as efficient catalysts for the selective aerobic oxidation of alcohols

“…different organic transformations [73][74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89]. However, to date, few magnetite nanoparticles supported palladium catalysts have been prepared and successfully used in the aerobic oxidation of alcohols.…”