Aqueous oxidation of alcohols catalysed by recoverable iron oxide nanoparticles supported on aluminosilicates

Rajabi, Fatemeh; Pineda, Antonio; Naserian, Sareh; Balu, Alina M.; Luque, Rafael; Romero, Antonio A.

doi:10.1039/c3gc40110c

Cited by 45 publications

(27 citation statements)

References 23 publications

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“…The differences in conversion and selectivity between Nb and Fe materials have been also presented in Figure . The high activity of the materials could be explained by the synergistic effect played between Fe and Al as well as Nb and Al, already observed in our earlier report . In our group we previously confirmed the nature of this interaction showing that iron oxide interact with aluminous extraframework reducing the high binding energy of Fe−O bond making possible the oxidation process .…”

Section: Resultssupporting

confidence: 78%

Selective Oxidation of Isoeugenol to Vanillin over Mechanochemically Synthesized Aluminosilicate Supported Transition Metal Catalysts

Franco

Balu

et al. 2017

ChemistrySelect

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Selective and efficient production of vanillin from lignin‐derived feedstocks has attracted attention to replace its current manufacturing process. Transition metal‐based catalysts supported on mesoporous aluminosilicate were synthesized using a mechanochemical approach and subsequently investigated in vanillin production via the selective oxidation of isougenol. The mechanochemically synthesized catalysts exhibited a high isoeugenol conversion under mild conditions using H2O2 as oxidizing agent. Nb‐based catalysts were found to provide the optimum conversion/selectivity under the investigated conditions (69% conversion, 66% vanillin selectivity, 2 h reaction). The synergistic effect between Fe/Nb and Al accounts as important key factor for optimum activity of catalytic systems.

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Section: Resultssupporting

confidence: 78%

Selective Oxidation of Isoeugenol to Vanillin over Mechanochemically Synthesized Aluminosilicate Supported Transition Metal Catalysts

Franco

Balu

et al. 2017

ChemistrySelect

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“…157 The use of catalysis in conjunction with microwave heating resulted in dramatic reductions in reaction time, which decreased from hours to minutes. Similar results were obtained by García-Martínez and co-workers when using iron oxide nanoparticles (0.5-1.2 wt%) on MCM-41 type silica materials.…”

Section: Microwave-assisted Reactionsmentioning

confidence: 99%

Homogeneous, Heterogeneous and Nanocatalysis

Albonetti

Mazzoni

Cavani

2014

Transition Metal Catalysis in Aerobic Alcohol Oxidation

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The past decade has seen ever-increasing interest in the catalytic aerobic oxidation of alcohols, which is one of the pivotal functional group transformations in organic chemistry. Nevertheless, most of the current methods for alcohol oxidation are not catalytic, hence the use of catalysts and green oxidants such as O2 or air, instead of stoichiometric quantities of inorganic oxidants, will provide a highly desirable approach to this reaction. This chapter summarizes the latest breakthroughs in the use of homogeneous and heterogeneous catalysts in aerobic alcohol oxidation in the liquid phase; the use of microwaves and photochemistry to assist and promote catalytic activities is also highlighted. Moreover, since nanoparticle systems may be considered an interesting compromise between heterogeneous and homogeneous catalytic systems, the recent development of soluble transition metal colloids as active nanocatalysts for aerobic alcohol oxidation is also presented.

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“…[5,6] In this context, a variety of functional magnetic nanoparticles have received increasing attention for a wide range of applications in diverse classes of organic transformations from laboratory to large-scale operations. [7][8][9][10][11][12] β-Amino alcohols are versatile intermediates in the synthesis of a vast variety pharmacologically interesting compounds, and biologically active natural and synthetic products. [13,14] They also play a significant role as chiral auxiliaries in asymmetric transformations.…”

Section: Introductionmentioning

confidence: 99%

A magnetic nanoparticle‐catalyzed regioselectivering opening of epoxides by aromatic amines

Azizi

Kamrani

Saadat

2016

Applied Organom Chemis

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Sulfonic acid‐functionalized silica‐coated magnetic Fe3O4 nanoparticles were synthesized and applied as a green catalyst for an efficient and environmentally friendly ring opening of epoxides with aromatic amines in good to excellent yields with high chemoselectivity. Clean aminolysis of various aliphatic and aromatic epoxides in ethanol generates β‐hydroxyamines under mild reaction conditions. The synthesized acidic magnetic nanoparticles were recovered using a simple external magnet and successfully reused for five runs without any appreciable loss of catalytic activity. Copyright © 2016 John Wiley & Sons, Ltd.

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Aqueous oxidation of alcohols catalysed by recoverable iron oxide nanoparticles supported on aluminosilicates

Cited by 45 publications

References 23 publications

Selective Oxidation of Isoeugenol to Vanillin over Mechanochemically Synthesized Aluminosilicate Supported Transition Metal Catalysts

Selective Oxidation of Isoeugenol to Vanillin over Mechanochemically Synthesized Aluminosilicate Supported Transition Metal Catalysts

Homogeneous, Heterogeneous and Nanocatalysis

A magnetic nanoparticle‐catalyzed regioselectivering opening of epoxides by aromatic amines

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