An Aromatic Iodination Method with Iodic Acid Used as the Only Iodinating Reagent†

摘要

Benzene, halobenzenes, and a number of more or less deactivated arenes, including nitrobenzene, readily reacted in anhydrous HIO₃/AcOH/Ac₂O/conc. H₂SO₄ mixtures to probably give ArIO₂ intermediates or other hypervalent species (not isolated). The final reaction mixtures were poured into excess aq. Na₂SO₃ solution (a reductant) to give the purified iodinated products in 39-83% yields.