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• 22057-44-9 1-(benzylsulfanyl)-2-nitrobenzene 

Relevant academic research and scientific papers

Fe3O4/PEG-SO3H as a heterogeneous and magnetically-recyclable nanocatalyst for the oxidation of sulfides to sulfones or sulfoxides

We present below a sulfonated-polyethylene glycol-coated Fe3O4 nanocomposite (Fe3O4/PEG-SO3H) as a greatly effective and ecological nanocatalyst for the selective oxidation of sulfides to sulfoxides or sulfones with brilliant yields under solvent-free conditions by employing 30% hydrogen peroxide as the oxidant. A number of sulfides containing alcohol, ester, and aldehyde functional groups were fruitfully and selectively oxidized without altering the desired characteristics. The magnetic nanocatalyst (Fe3O4/PEG-SO3H) can be conveniently and swiftly retrieved through the utilization of an external magnetic tool and recycled for more than 10 reaction runs without significantly decreasing its catalytic behavior.

Tetrabutylammonium tribromide impregnated MCM-48 as a heterogeneous catalyst for selective oxidation of sulfides

We report here tetrabutylammonium tribromide supported on MCM-48 as a highly efficient heterogeneous catalyst for the selective oxidation of sulfides, in ethanolic medium using hydrogen peroxide as an oxidant. The aforementioned oxidation reactions were found to proceed rapidly (20 min) and in good yield (85-99%) (17 examples). The oxidation products were characterized by 1H NMR, 13C NMR and elemental analysis. The catalytic properties were analysed by TEM, XRD and BET-surface area measurement. No over-oxidation of the substrates was observed (analysed by GC), and the catalyst was effectively recycled for five consecutive cycles without any significant loss in its catalytic activity.

Copper-Schiff base complex catalyzed oxidation of sulfides with hydrogen peroxide

A straightforward, efficient, and selective oxidation of sulfide to sulfoxide with 30% H2O2 catalyzed by copper(II)-Schiff base complex is described. The reactions proceed under mild conditions in acetonitrile at room temperature to provide a variety of aryl and alkyl sulfoxides in excellent yield.

Copper-Schiff base complex catalyzed oxidation of sulfides with hydrogen peroxide

A straightforward, efficient, and selective oxidation of sulfide to sulfoxide with 30% H2O2 catalyzed by copper(II)-Schiff base complex is described. The reactions proceed under mild conditions in acetonitrile at room temperature to provide a variety of aryl and alkyl sulfoxides in excellent yield.

A new series of Ni(II), Cu(II), Co(II) and Pd(II) complexes with an ONS donor Schiff base: Synthesis, crystal structure, catalytic properties and bioactivities

A new series of bichelated complexes of the formula M(L)2 and M(L)Cl, where M = Ni(II), Cu(II), Co(II) and Pd(II) and L = a deprotonated Schiff base, were synthesized from the reaction of 5-bromo N-[(2-benzylthio)- phenyl] salicylaldimine (HL, 1), a new potential tridentate (O, N, S donor) Schiff base, with metal salts in methanol medium, and the complexes were characterized by a variety of physicochemical techniques, namely elemental analyses, FT-IR, 1H NMR and UV-Vis spectroscopies, thermogravimetric analysis and conductivity studies. The coordination mode of the palladium complex was determined by single crystal X-ray diffraction studies and was found to possess a distorted square planar structure with the ligand coordinated as a uninegatively charged tridentate chelating agent via the hydroxyl oxygen, azomethine nitrogen and thioether sulfur atoms, and the remaining fourth coordinating site was filled by a chloride ion. The copper complex shows very good catalytic activities towards the oxidation of organic thioethers to the corresponding sulfoxide and sulfones using H2O2 as the oxidant. The ligand and complexes exhibited considerable antibacterial and antifungal activities against Klebsiella pneumoniae (ATCC 10536), Staphylococcus aureus (ATCC 11632) and Candida albicans.