Synthesis of Aromatic <i>N</i>-Oxides Using Electrochemically Generated Peroxodicarbonate
作者:Philipp J. Kohlpaintner、Niclas Schupp、Niklas Ehlenz、Lucas Marquart、Lukas J. Gooßen、Siegfried R. Waldvogel
DOI:10.1021/acs.orglett.3c04386
日期:2024.3.1
Electrochemicallygenerated 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
metal-free approach for the synthesis of 3-aryl-2-substituted quinolines and 4-arylacridines has been developed via the 1,3-dipolar cycloaddition reactions of arynes with N-oxides. Reactions of various 2-substitued quinolineN-oxides with ortho-(trimethylsilyl)aryltriflates in the presence of KF gave 3-(2-hydroxyaryl)quinoline derivatives in good yields. Acridine N-oxides also reacted with arynes to