Ionic Liquids as Solvents for Catalyzed Oxidations of Organic Compounds

Мuzart, Jacques

doi:10.1002/adsc.200505273

Cited by 204 publications

(91 citation statements)

References 104 publications

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“…Up to now, the electrochemical behavior of POMs has been studied in many environments, such as aqueous solution [28,29] or ionic liquid [30][31][32][33]. POMs have been studied as monolayers or organic-inorganic hybrids in contact with different supporting electrolytes [34,35], and as single crystals in the absence of external liquid phase [21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Solid-state electrochemical behavior of Keggin-type borotungstic acid single crystal

Adamczyk

Miecznikowski

2013

J Solid State Electrochem

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We demonstrate the electrochemical characteristics of the, poorly described in the literature, mixed-valence proton conducting solid borotungstic acid single crystal, H 5 BW 12 O 40 xH 2 O, in the absence of liquid electrolyte phase. We performed electrochemical measurements in an all-solid cell with a gold fiber ultramicrodisk (diameter 10, 25, and 40 μm) working electrode, a silver semi-reference disk electrode, and a glassy carbon ring counter electrode. Diagnostic experiments at different scan rates aimed at probing the model of mass transport and potential kinetic limitations. Such bulk parameters as the effective diffusion coefficient of charge propagation and the concentration of mixed-valence redox centers were determined by two methods. The first method is based on the analysis of both Cottrellian and steady-state currents (the mixed-regimes method), and the second method provides the true diffusion coefficient (transport coefficient free of the migration influence) for both the substrate and the product of the electrode reaction. Together, these methods constitute a double potential step chronoamperometry experiment. The data obtained with these electrochemical experiments (effective diffusion coefficients, concentration of mixed-valence redox centers, etc.) can support the results obtained with other techniques (XRD, FTIR, and TGA).

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Section: Introductionmentioning

confidence: 99%

Solid-state electrochemical behavior of Keggin-type borotungstic acid single crystal

Adamczyk

Miecznikowski

2013

J Solid State Electrochem

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“…Another alternative would be the use of homogeneous catalysts in a specially designed liquid phase which should be tuned in such a way that easy separation of reagents and products from the catalytic phase should become more straightforward [44]. The catalytically active phase could thus be reused for more reaction cycles.…”

Section: Introductionmentioning

confidence: 99%

Epoxidation of cyclooctene and cyclohexene with hydrogen peroxide catalyzed by bis[3,5-bis(trifluoromethyl)-diphenyl] diselenide: Recyclable catalyst-containing phases through the use of glycerol-derived solvents

García-Marín

Toorn

Mayoral

et al. 2011

Journal of Molecular Catalysis A: Chemical

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A green strategy has been explored for olefin epoxidation which combines renewable solvents (derived from glycerol), aqueous hydrogen peroxide, and catalyst recycling (a seleninic acid derivative). The use of fluorinated glycerol derivatives allows good catalytic activity in the epoxidation of cyclooctene and cyclohexene with aqueous hydrogen peroxide, preventing epoxide hydrolysis to a great extent, which is particularly remarkable in the case of cyclohexene. Furthermore, recycling of the catalytically active phase is possible through distillation of the cyclohexene oxide from the reaction mixture, which can be subsequently recharged with fresh oxidant and substrate.

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“…However due to its low solubility in bmimBF 4 , the oxidation was feasible only in bypyNTf 2 with a quantitative conversion of the substrate and an interesting yield of 89% in the corresponding cis-COT oxide (Entries 2,3). This result once more demonstrates that suited IL's can be found for diverse catalytic processes [51]. In order to explore the synthetic applicability of the ILs based procedure, after the complete consumption of the oxidant, the catalytic phase was recharged with substrate and H 2 O 2 two more times and a single final work up of the reaction mixture was done.…”

Section: Resultsmentioning

confidence: 92%

Ionic liquids as reaction media in catalytic oxidations with manganese and iron pyridyl triazacyclononane complexes

Lentini

Galloni

Garcia‐Bosch

et al. 2014

Inorganica Chimica Acta

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Ionic Liquids as Solvents for Catalyzed Oxidations of Organic Compounds

Cited by 204 publications

References 104 publications

Solid-state electrochemical behavior of Keggin-type borotungstic acid single crystal

Solid-state electrochemical behavior of Keggin-type borotungstic acid single crystal

Epoxidation of cyclooctene and cyclohexene with hydrogen peroxide catalyzed by bis[3,5-bis(trifluoromethyl)-diphenyl] diselenide: Recyclable catalyst-containing phases through the use of glycerol-derived solvents

Ionic liquids as reaction media in catalytic oxidations with manganese and iron pyridyl triazacyclononane complexes

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