Efficient and convenient epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6]

Hu, Yinchang; Liu, Yiwen; Li, Dejiang

doi:10.1007/s13738-015-0695-8

Cited by 5 publications

(5 citation statements)

References 45 publications

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“…Styrene epoxidation by hydrogen peroxide has also been performed in an IL, with excellent results (92 % yield in 3 h) . The reaction was catalyzed by Co(OAc) 2 dissolved in [C 12 py][PF 6 ] (Scheme ).…”

Section: Biphasic Oxidations With Hydrogen Peroxide By Using Ilsmentioning

confidence: 99%

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Applications of Liquid/Liquid Biphasic Oxidations by Hydrogen Peroxide with Ionic Liquids or Deep Eutectic Solvents

Guajardo

Carlesi

Schrebler³

et al. 2016

ChemPlusChem

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This Minireview focuses on recent applications of ionic liquids (ILs) and deep eutectic solvents (DESs) in biphasic oxidations in which the oxidizing agent corresponds to hydrogen peroxide. Biphasic reactions are accomplished when the substrate presents low or moderate solubility in aqueous (polar) systems and/or when separation of products and byproduct is an issue. The properties of the IL and DES allows the reaction activity to be intensified. On the other hand, the high chemical stability of the ionic solvents allows the use of hydrogen peroxide to minimize solvent degradation and unwanted byproducts. The experimental evidence presented herein shows that ILs and DESs can be used as cocatalysts, catalysts, and solvents to achieve enhanced yields and conversions. The process advantages, in terms of a reduction of volatile solvents, improve the safety and use of the oxidizing agent, which implies the possibility of developing new process improvements in the future.

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Section: Biphasic Oxidations With Hydrogen Peroxide By Using Ilsmentioning

confidence: 99%

“…The symmetry between the cation and anion can influence the increase of catalytic activity and yield, owing to enhanced solubility of hydrogen peroxide in the IL. Recycling experiments showed that the catalytic system could be reused six times without the loss of activity …”

Section: Biphasic Oxidations With Hydrogen Peroxide By Using Ilsmentioning

confidence: 99%

Applications of Liquid/Liquid Biphasic Oxidations by Hydrogen Peroxide with Ionic Liquids or Deep Eutectic Solvents

Guajardo

Carlesi

Schrebler³

et al. 2016

ChemPlusChem

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“…The 1,2-epoxy alkanes synthesized by a-olens serve as specic intermediates for synthesizing highvalue chemicals, 3,4 presenting a distinct application potential, particularly in the realm of surfactants. 5,6 In the context of olen epoxidation, catalysts have played a pivotal role. 7,8 Broadly, these catalysts can be categorized as either metal-based or inorganic catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…The 1,2-epoxy alkanes synthesized by α-olefins serve as specific intermediates for synthesizing high-value chemicals, 3,4 presenting a distinct application potential, particularly in the realm of surfactants. 5,6…”

Section: Introductionmentioning

confidence: 99%

The influence of hydrogen bonding on the structure of organic–inorganic hybrid catalysts and its application in the solvent-free epoxidation of α-olefins

Ju,

Zhang,

et al. 2024

RSC Adv.

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“…Catalysts for the direct epoxidation of α-olefin include biocatalysts, metal oxides, metal complexes, molecular sieve-based catalysts, and polyoxometalates, most of which are homogeneous catalysts. − Sawada et al demonstrated that Ti-(salalen) can be used in asymmetric epoxidation of nonactivate olefins, over which a 97% enantioselectivity was obtained by using aqueous hydrogen peroxide as oxidant . Tibbetts et al developed a recyclable tungsten-based polyoxometalate phase transfer catalyst for epoxidation of terpene in microreactors containing static mixing channels .…”

Section: Introductionmentioning

confidence: 99%

Design of Organic–Inorganic Phase Transfer Hybrid Catalyst and Its Application in the Epoxidation of α-Olefins

Ju,

Zhang,

Guo

et al. 2024

Ind. Eng. Chem. Res.

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The catalytic epoxidation of α-olefin with long carbon chains has always been a challenge. Traditional homogeneous or heterogeneous catalysts showed poor performance toward the reaction. In this paper, layered organic−inorganic catalysts were prepared by the reaction of phosphotungstic acid and a Gemini quaternary ammonium salt, which could convert long α-olefin to epoxide with a selectivity of 85% in the absence of organic solvents. Combined with characterization results, it was confirmed that the catalyst was layered structure materials, which was supported by a quaternary ammonium salt chain, and the active molecules were distributed between the layered structures. The possible mechanism was also discussed preliminarily.

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Efficient and convenient epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6]

Cited by 5 publications

References 45 publications

Applications of Liquid/Liquid Biphasic Oxidations by Hydrogen Peroxide with Ionic Liquids or Deep Eutectic Solvents

Applications of Liquid/Liquid Biphasic Oxidations by Hydrogen Peroxide with Ionic Liquids or Deep Eutectic Solvents

The influence of hydrogen bonding on the structure of organic–inorganic hybrid catalysts and its application in the solvent-free epoxidation of α-olefins

Design of Organic–Inorganic Phase Transfer Hybrid Catalyst and Its Application in the Epoxidation of α-Olefins

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