Immobilization of a molybdenum complex on the surface of magnetic nanoparticles for the catalytic epoxidation of olefins

Zare, Maryam; Moradi‐Shoeili, Zeinab; Bagherzadeh, Mojtaba; Akbayrak, Serdar

doi:10.1039/c5nj02218e

Cited by 31 publications

(17 citation statements)

References 33 publications

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“…Mesoporous supports have also been widely used as core materials for magnetic components. Zare et al . synthesized MoO 3 (sal‐phz)Fe 3 O 4 ‐SBA‐15 by anchoring Mo complexes of salicylidene 2‐picoloyl hydrazine (sal‐phz), MoO 2 (sal‐phz)(CH 3 OH) on the surface of magnetic nanoparticles.…”

Section: Mo‐based Catalystsmentioning

confidence: 99%

“…[40] (k) MoO 3 (sal-phz)Fe 3 O 4 -SBA-15(2 A). [41] (l) MoO 3 (sal-phz)Fe 3 O 4 -SBA-15(3B). [41] (m) Mo-salenSi@Si-MNPs.…”

Section: Magnetic Particles Supported Mo-based Catalystsmentioning

confidence: 99%

“…[41] (l) MoO 3 (sal-phz)Fe 3 O 4 -SBA-15(3B). [41] (m) Mo-salenSi@Si-MNPs. [42] [43] (MoO 2 salpr@MCM-41), [44] MoO 2 Sal@MCM-41, [45] results showed that MoO 2 Sal/APTSCMNPs are more active in cyclohexene epoxidation in the same reaction conditions due to the fact that MoO 2 Sal/APTSCMNPs has better site isolation, insignificant pore diffusion limitations and relatively strong interaction between the chelating ligand and the Mo center.…”

Section: Magnetic Particles Supported Mo-based Catalystsmentioning

confidence: 99%

“…Mesoporous supports have also been widely used as core materials for magnetic components. Zare et al [41] synthesized MoO 3 (sal-phz)Fe 3 O 4 -SBA-15 by anchoring Mo complexes of salicylidene 2-picoloyl hydrazine (sal-phz), MoO 2 (sal-phz) (CH 3 OH) on the surface of magnetic nanoparticles. They functionalize the MNPs by two routes as shown in Figure 3k and 3 l: in the first route, the surface of MNPs was modified with 3-chloropropyltrimethoxysilane yield MoO 3 (sal-phz) Fe 3 O 4 -SBA-2 A.…”

Section: Magnetic Particles Supported Mo-based Catalystsmentioning

confidence: 99%

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Recent Advances in Facile Liquid Phase Epoxidation of Light Olefins over Heterogeneous Molybdenum Catalysts

Yan

Liu

Wang

et al. 2019

The Chemical Record

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Molybdenum complexes are versatile and efficient for liquid phase olefin epoxidation reactions. Rational design of catalysts is critical to achieve high atom efficiency during epoxidation processes. Although liquid phase epoxidation has been a popular topic for decades, three key issues, (a) rational control of morphology of molybdenum nanoparticles, (b) manipulating metal‐support interaction and (c) altering electronic configuration at molybdenum center remains unsolved in this area. Therefore, in this paper, we have critically revised recent research progress on heterogeneous molybdenum catalysts for facile liquid phase olefin epoxidation in terms of catalyst synthesis, surface characterization, catalytic performance and structure‐function relationship. Furthermore, plausible reaction mechanisms will be systematically discussed with the aim to provide insights into fundamental understanding on novel epoxidation chemistry.

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Section: Mo‐based Catalystsmentioning

confidence: 99%

“…[40] (k) MoO 3 (sal-phz)Fe 3 O 4 -SBA-15(2 A). [41] (l) MoO 3 (sal-phz)Fe 3 O 4 -SBA-15(3B). [41] (m) Mo-salenSi@Si-MNPs.…”

Section: Magnetic Particles Supported Mo-based Catalystsmentioning

confidence: 99%

Section: Magnetic Particles Supported Mo-based Catalystsmentioning

confidence: 99%

Section: Magnetic Particles Supported Mo-based Catalystsmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in Facile Liquid Phase Epoxidation of Light Olefins over Heterogeneous Molybdenum Catalysts

Yan

Liu

Wang

et al. 2019

The Chemical Record

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“…An interesting metathetic oxidation of 2‐butene to acetaldehyde by O 2 gas catalyzed by the immobilized MoO 2 ‐hydrazone complexes on SiO 2 , heterogeneously, afforded high yields . The heterogeneous molybdenum‐salicylidene 2‐picoloyl hydrazone complex, which supported on Fe 3 O 4 nano‐particles, showed high catalytic potential in the (ep)oxidation of various olefins . Molybdenum acetylacetonate complexes, which supported on functionalized boehmite nano‐particles, investigated as catalysts in the (ep)oxidation of unsaturated hydrocarbons presenting high potential .…”

Section: Introductionmentioning

confidence: 99%

Bis‐dioxomolybdenum (VI) oxalyldihydrazone complexes: Synthesis, characterization, DFT studies, catalytic epoxidation potential, molecular modeling and biological evaluations

Adam

Ahmed

Elhady

et al. 2020

Applied Organom Chemis

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Two cis‐bis‐dioxomolybdenum oxalylsalicylidenedihydrazone complexes (MoO2L1 and MoO2L2) were synthesized via the complexation of dioxomolybdenum (VI) acetylacetonate with oxalylsalicylidenedihydrazone (H2L1) and p‐sodium sulfonate oxalylsalicylidenedihydrazone (H2L2) bis‐Schiff base chelating ligands, respectively. The structures of the newly synthesized complexes were confirmed by 1H‐ and 13C‐NMR, IR, ultraviolet–visible and mass spectra, as well as elemental analyses (EA) and conductivity measurements. The spectrophotometric continuous variation method revealed the formation of 2: 1 (metal: ligand molar ratios). DFT studies were applied for the ligands and their Mo‐chelates. Interestingly, the bis‐MoO2(VI) oxalyldihydrazone complexes showed remarkable catalytic sufficiency towards the selective (ep)oxidation of 1,2‐cyclooctene, benzyl alcohol and thiophene using H2O2 or tert‐butyl hydroperoxide (tBuOOH) at 85 °C. Under aqueous conditions, the MoO2L2 (with p‐sodium sulfonate substituent) exhibited superior that of the MoO2L1 (without p‐NaSO3―group), highlighting the role of sodium sulfonate substituent in the catalytic progress of the Mo‐chelate. The ligands (H2L1 and H2L2) and their corresponding Mo‐complexes (MoO2L1 and MoO2L2) were assessed for their antitumor and antimicrobial activities. Furthermore, the antioxidant activity was also evaluated using the 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) and superoxide dismutase (SOD) assays. The binding nature between the Mo‐complexes and calf thymus DNA (ctDNA) was also studied within spectroscopic and hydrodynamic techniques.

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

Zare

Moradi‐Shoeili

2016

Applied Organom Chemis

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A new epoxidation catalyst has been prepared by grafting a molybdenum(VI)oxodiperoxo complex containing an oxazine ligand, [MoO(O 2 ) 2 (phox)], on chlorofunctionalized Fe 3 O 4 nanoparticles. The synthesized heterogeneous catalyst (MoO (O 2 ) 2 (phox)/Fe 3 O 4 was characterized using powder X-ray diffraction, scanning and transmission electron microscopies, vibrating sample magnetometry, energydispersive 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.

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Immobilization of a molybdenum complex on the surface of magnetic nanoparticles for the catalytic epoxidation of olefins

Abstract: A molybdenum complex was immobilized on Fe3O4 nanoparticles modified with chloropropyl by two routes and used as a nanocatalyst for the oxidation of alkenes.

Cited by 31 publications

References 33 publications

Recent Advances in Facile Liquid Phase Epoxidation of Light Olefins over Heterogeneous Molybdenum Catalysts

Recent Advances in Facile Liquid Phase Epoxidation of Light Olefins over Heterogeneous Molybdenum Catalysts

Bis‐dioxomolybdenum (VI) oxalyldihydrazone complexes: Synthesis, characterization, DFT studies, catalytic epoxidation potential, molecular modeling and biological evaluations

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

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