Abstract

Arene chromium tricarbonyl complexes 1 react with dimethyldioxirane to give the corresponding arene derivatives 2 in quantitative yields. The reaction is rapid, highly chemoselective and involves an easy manipulation procedure. In addition, the reaction course could be monitored by colour change, thus avoiding the possible further oxidation of substituents linked to the aromatic ring. However, the complex with thioanisole was chemoselectively oxidized with dimethyldioxirane to the corresponding sulfoxide complex.

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