Oxidation of alkenes catalysed by molybdenum(VI)–oxodiperoxo complex anchored on the surface of magnetic nanoparticles under solvent‐free conditions

A new epoxidation catalyst has been prepared by grafting a molybdenum(VI)–oxodiperoxo complex containing an oxazine ligand, [MoO(O2)2(phox)], on chloro‐functionalized Fe3O4 nanoparticles. The synthesized heterogeneous catalyst (MoO(O2)2(phox)/Fe3O4 was characterized using powder X‐ray diffraction, s...

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Bibliographic Details
Published in:Applied organometallic chemistry 2017-06, Vol.31 (6), p.n/a
Main Authors: Zare, Maryam, Moradi‐Shoeili, Zeinab
Format: Article
Language:English
Subjects:
Alkenes
Atomic beam spectroscopy
Atomic emission spectroscopy
Butyl hydroperoxide
Catalysts
Chemical synthesis
Chemistry
Coordination compounds
Emission analysis
Energy transmission
Epoxidation
Fourier analysis
Fourier transforms
Grafting
heterogenization
Inductively coupled plasma
Infrared analysis
Infrared spectroscopy
Iron oxides
Molybdenum
nanoparticles
Oxidation
Selectivity
Solvents
solvent‐free
Spectroscopic analysis
Spectrum analysis
X ray analysis
X-ray diffraction
X-rays
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Summary:A new epoxidation catalyst has been prepared by grafting a molybdenum(VI)–oxodiperoxo complex containing an oxazine ligand, [MoO(O2)2(phox)], on chloro‐functionalized Fe3O4 nanoparticles. The synthesized heterogeneous catalyst (MoO(O2)2(phox)/Fe3O4 was characterized using powder X‐ray diffraction, scanning and transmission electron microscopies, vibrating sample magnetometry, energy‐dispersive X‐ray analysis, Fourier transform infrared spectroscopy and inductively coupled plasma atomic emission spectroscopy. The immobilized complex gave high product yields and high selectivity for epoxide compared to the corresponding homogeneous one in the epoxidation of various olefins in the presence of tert‐butyl hydroperoxide at 95°C without any co‐solvent. Also, the heterogeneous catalyst can be recycled without a noticeable change in activity and selectivity. A catalyst of modified Fe3O4 nanoparticles as support for a molybdenum(VI) oxodiperoxo complex containing an oxazine ligand shows high catalytic activity and selectivity under solvent‐free conditions, as does the homogeneous conterpart.
ISSN:0268-2605
1099-0739
DOI:10.1002/aoc.3611