Synthesis of Aromatic N-Oxides Using Electrochemically Generated Peroxodicarbonate
Philipp J Kohlpaintner1, Niclas Schupp1, Niklas Ehlenz1
1Johannes Gutenberg University Mainz, Department of Chemistry, Duesbergweg 10-14, 55128 Mainz, Germany.
Abstract:
Electrochemically generated green platform oxidizers like peroxodicarbonate (PODIC) constitute a game-changing technology in terms of sustainable chemistry while serving as an alternative counterreaction in the electrochemical hydrogen evolution. Peroxodicarbonate avoids the storage and shipping of concentrated hydrogen peroxide solution. We herein disclose an efficient method for the N-oxidation of quinolines, pyridines, and complex tertiary amines. The use of phenoyloxy succinimide (POSI) is the decisive factor for obtaining N-oxides (28 examples) in isolated yields of up to 98%.
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