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An aromatic iodination method, with iodic acid used as the only iodinating reagent.

Molecules (Basel, Switzerland) (2007-11-17)
Barbara Krassowska-Swiebocka, Grazyna Prokopienko, Lech Skulski
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Lithium iodate, 97%
Sigma-Aldrich
Iodic acid, ACS reagent, ≥99.5%
Sigma-Aldrich
Iodic acid, puriss. p.a., ACS reagent, ≥99.5% (RT)
Sigma-Aldrich
Magnesium iodate tetrahydrate, 99.0%