F. Effenberger, H. Kottmann
Apr 1, 1987
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Tetrahedron
Abstract
Abstract Aryl phosphonates can be prepared in good yields from the respective arenes and tri- or dialkylphosphites by either chemical or electrochemical oxidation1. The anodic oxidation proceeds either via phosphonium radical cations which then attack the arenes electrophilically or via arene radical cations which add the trialkyl-phosphite as nucleophile1,2. Aryl phosphonates are also obtained in good yields by chemical oxidation with peroxidisulfate/AgNO3, Iron(III)- or Cerium(IV)-complexes in acetonitrile/water or glacial acetic acid3.