Abstract
The first chiral oxo-vanadium (+)-pseudoephedrine complex supported on magnetic nanoparticles Fe3O4 [VO(pseudoephedrine)@MNPs] as novel magnetically interphase nanocatalyst was designed and characterized using the most common techniques. VO(pseudoephedrine)@MNPs catalyzed the chemoselective oxidation of sulfides to sulfoxides using hydrogen peroxide as a green oxidant in high yields with 20–27% enantiomeric excesses under solvent-free conditions at room temperature. The catalyst was recycled up to 20 times with little loss of activity and enantioselectivity.
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