Beschreibung:
<jats:title>Abstract</jats:title><jats:p>Peroxodicarbonates are of substantial interest as potentially powerful and sustainable oxidizers but have so far been accessible only in low concentrations with unsatisfactory energy efficiency. Concentrated (> 0.9 mol L<jats:sup>−1</jats:sup>) peroxodicarbonate solutions have now been made accessible by the electrolysis of aqueous K<jats:sub>2</jats:sub>CO<jats:sub>3</jats:sub>/Na<jats:sub>2</jats:sub>CO<jats:sub>3</jats:sub>/KHCO<jats:sub>3</jats:sub> solutions at high current density of 3.33 A cm<jats:sup>−2</jats:sup> in an efficiently cooled circular flow reactor equipped with a boron‐doped diamond anode and a stainless‐steel cathode. Their synthetic potential as platform oxidizers was clearly demonstrated in transformations including sulfoxidation, <jats:italic>N</jats:italic>‐oxidation, and epoxidation.</jats:p>