The efficient incorporation of carbon dioxide into organic scaffolds is a key goal of modern synthetic chemistry. However, the activation of CO2 toward chemical transformations represents a formidable challenge because of its high thermodynamic stability and kinetic inertness. Against this backdrop, electrochemical carboxylation (EC) methods are able to tame the high stability of CO2 by simply using electrons as crucial reagents, thus avoiding the harsh reaction conditions typically used in classical carboxylation transformations. Further, because the applied potential can be directly generated from renewable sources, EC is considered a green technology. This chapter summarizes the most recent advances in electrochemical CO2 valorization of the past two decades. It presents the diverse synthetic transformations, with a special focus on the operational reaction conditions, the scope and limitations of each transformations, and the relevance of the product obtained. Moreover, this chapter critically assesses the different reaction mechanisms in order to provide a comprehensive understanding of the observed reactivity and selectivity, along with offering a rational platform for the design of new EC transformations.

Recent Advances in Electrochemical Carboxylation of Organic Compounds for CO2 Valorization

Luca dell'amico
;
marcella bonchio;
2020

Abstract

The efficient incorporation of carbon dioxide into organic scaffolds is a key goal of modern synthetic chemistry. However, the activation of CO2 toward chemical transformations represents a formidable challenge because of its high thermodynamic stability and kinetic inertness. Against this backdrop, electrochemical carboxylation (EC) methods are able to tame the high stability of CO2 by simply using electrons as crucial reagents, thus avoiding the harsh reaction conditions typically used in classical carboxylation transformations. Further, because the applied potential can be directly generated from renewable sources, EC is considered a green technology. This chapter summarizes the most recent advances in electrochemical CO2 valorization of the past two decades. It presents the diverse synthetic transformations, with a special focus on the operational reaction conditions, the scope and limitations of each transformations, and the relevance of the product obtained. Moreover, this chapter critically assesses the different reaction mechanisms in order to provide a comprehensive understanding of the observed reactivity and selectivity, along with offering a rational platform for the design of new EC transformations.
2020
CO2 as a Building Block in Organic Synthesis
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3350963
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