Synthesis 2010(21): 3681-3685  
DOI: 10.1055/s-0030-1258223
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

m-Iodosylbenzoic Acid as a Convenient Recyclable Hypervalent Iodine Oxidant for the Synthesis of α-Iodo Ketones by Oxidative Iodination of Ketones

Mehman S. Yusubov*a, Rosa Y. Yusubovaa, Tatyana V. Funka, Ki-Whan Chib, Andreas Kirschningc, Viktor V. Zhdankin*d
a The Siberian State Medical University and Tomsk Polytechnic University, 2 Moskovsky trakt, 634050 Tomsk, Russian Federation
e-Mail: yusubov@mail.ru;
b University of Ulsan, 680-749 Ulsan, Republic of Korea
c Institut für Organische Chemie, Leibniz Universität Hannover, Schneiderberg 1b, 30167 Hannover, Germany
d Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, MN 55812, USA
Fax: +1(218)7267394; e-Mail: vzhdanki@d.umn.edu;
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Publikationsverlauf

Received 9 June 2010
Publikationsdatum:
20. August 2010 (online)

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Abstract

A convenient procedure for the preparation of α-iodo ketones by oxidative iodination of ketones using iodine and m-iodosylbenzoic acid as a recyclable hypervalent iodine oxidant is reported. Various ketones and β-dicarbonyl compounds can be iodinated by this reagent system under mild conditions affording the respective α-iodo-substituted carbonyl compounds in excellent yields. The final products of iodination are conveniently separated from byproducts by simple treatment with anionic exchange resin Amberlite IRA 900 HCO3 - and are isolated with good purity after evaporation of the solvent. The reduced form of the hypervalent iodine oxidant, m-iodobenzoic acid, can be recovered in 91-95% yield from the Amberlite resin by treatment with aqueous hydrochloric acid followed by extraction with ethyl acetate.