Flow Chemistry: Integrated Approaches for Practical Applications
Chapter 5: Electrochemistry under Flow Conditions
Published:18 Sep 2019
Special Collection: 2019 ebook collection , ECCC Environmental eBooks 1968-2022Series: Green Chemistry
A. A. Folgueiras-Amador and T. Wirth, in Flow Chemistry: Integrated Approaches for Practical Applications, ed. S. V. Luis and E. Garcia-Verdugo, The Royal Society of Chemistry, 2019, ch. 5, pp. 153-198.
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Organic electrosynthesis is recognised as a green enabling methodology to perform reactions in an efficient and straightforward way. Electrons are used as the reagent to form anion and cation radical species from neutral organic molecules achieving oxidations and reductions by replacing toxic and dangerous reagents. Within this field, the use of microreactors in continuous flow is also concurrent with electrochemistry because of its convenient advantages over batch, such as: (i) low loading or no supporting electrolyte at all, due to the small distance between electrodes, providing significant advantages in downstream processing; (ii) high electrode surface-to-reactor volume ratio; (iii) short residence time; (iv) improved mixing effect. In this chapter the most relevant electrochemical flow reactors and electrochemical transformations performed in continuous flow are presented and discussed.