Electrochemical Fixation of Carbon Dioxide

Senboku, Hisanori

doi:10.1007/978-3-642-44988-8_10

Cited by 4 publications

(2 citation statements)

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“…Several articles [22,[45][46][47] have reviewed the preparative and mechanistic details of the electrocarboxylation of various compounds in molecular solvents. This review is focused instead on new progress made available by electrocarboxylation in ionic liquids.…”

Section: Introductionmentioning

confidence: 99%

Chapter 7. Electrocarboxylation in Ionic Liquids

Zhao

Horne

Bond³

et al. 2018

Energy and Environment Series

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Four drivers have stimulated recent research into the electrochemical conversion of carbon dioxide into fuels and chemicals: (1) The prospect of using gaseous CO2, a gas previously considered a useless waste product, as an economical and abundant source of carbon. (2) The urgent need for effective energy storage technology. (3) The versatility of electrochemical methods. (4) Concern about the rising levels of CO2 in the atmosphere. Within this thriving research field, one area that has received significant attention is the electrocarboxylation of organic compounds and which provides the focus of this review. Electrocarboxylation occurs when a reactive radical anion generated electrochemically from an organic substrate (or CO2) reacts with CO2 (or an organic substrate) to form a carboxylate. However, the high reactivity of the electrogenerated reactant means many factors can influence the reaction pathway, particularly the nature of the solvent and electrode. Special attention is given in this review to the use of ionic liquids in electrocarboxylation because these neoteric solvents provide promising alternatives to organic molecular solvents. Finally, some perspectives on potential industrial application of ionic liquids in electrocarboxylation are provided.

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Section: Introductionmentioning

confidence: 99%

Chapter 7. Electrocarboxylation in Ionic Liquids

Zhao

Horne

Bond³

et al. 2018

Energy and Environment Series

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“…Electrochemistry represents a viable alternative by eliminating the use of toxic and hazardous reducing agents. , Major advances have been made with the use of sacrificial anodes (e.g., Mg, Al), which enabled the in situ formation of an organometallic species . In general, the electrocarboxylation of benzyl halides involves an initial reduction, forming either the benzyl radical or the anion, which can then react with CO 2 to yield phenylacetic acid.…”

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confidence: 99%

Electrogenerated Sm(II)-Catalyzed CO₂ Activation for Carboxylation of Benzyl Halides

2019

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Sm(II)-catalyzed carboxylation of benzyl halides is reported through the electrochemical reduction of CO 2 . The transformation proceeds under mild reaction conditions to afford the corresponding phenylacetic acids in good to excellent yields. This user-friendly and operationally simple protocol represents an alternative to traditional strategies, which usually proceeds through C(sp 3 )-halide activation pathway.Currently, carbon dioxide (CO 2 ) represents one of the major contributors to the greenhouse effect in the atmosphere. Thus, in the past decade, scientists, notably organic chemists, have dedicated substantial research efforts to find ways to fix CO 2 and to convert it into valuable chemicals. [1][2][3] The difficulty is that, due to the thermodynamic stability of its CO bond, the insertion of CO 2 into an organic moiety remains challenging, especially if we aim at high reactivities and functional group tolerance. Nucleophiles such as Grignard and organolithium reagents are typically required for direct activation of CO 2 . 2,3 Recent advances in catalysis and electrochemistry have independently provided efficient solutions for the chemical transformation of CO 2 (Scheme 1). 3,4 ASSOCIATED CONTENT Supporting InformationThe Supporting Information is available free of charge on the ACS Publications. Experimental procedures, compounds data, and spectra.

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