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| LETTER | Synlett 2006: 0798-0800
DOI: 10.1055/s-2006-933120 |
© Georg Thieme Verlag Stuttgart · New York
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PhI-Catalyzed α-Tosyloxylation of Ketones with m-Chloroperbenzoic Acid and p-Toluenesulfonic Acid
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| Yukiharu Yamamotoa, Hideo Togo*a,b |
a Graduate School of Science and Technology, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
b Department of Chemistry, Faculty of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
e-Mail: togo@faculty.chiba-u.jp;
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Received
12 January 2006 |
Abstract
Various α-tosyloxyketones were efficiently prepared in high yields from the reaction of ketones with m-chloroperbenzoic acid and p-toluenesulfonic acid in the presence of a catalytic amount of iodobenzene at warming temperature. Key words
iodobenzene - α-tosyloxyketones - ketones - m-chloroperbenzoic acid - p-toluenesulfonic acid - catalysts
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