Abstract
The nanoporous chromium carboxylate MIL-101 with coordinatively unsaturated chromium sites has been shown to be active in the sulfoxidation of aryl sulfides with H 2O 2 to selectively produce the corresponding sulfoxides. Interestingly, the electron-releasing groups in the oxygenation reaction of para-X-phenylmethyl sulfoxides (X-Ph-S-CH 3, X = CH 3, H, NO 2, and CN) enhanced the oxidation reactivity in 1:1 mixtures of X-Ph-S-CH 3:H-Ph-S-CH 3. Moreover, the 18O-labeled experiments to understand the source of oxygen in sulfoxide products proved that the oxygen atom in the sulfoxide product was entirely derived from H 2O 2.
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