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Indexed by:期刊论文

Date of Publication:2010-01-01

Journal:MOLECULES

Included Journals:SCIE、PubMed

Volume:15

Issue:1

Page Number:83-92

ISSN No.:1420-3049

Key Words:aerobic oxidation; sulfids; Br(2); NaNO(2); molecular oxygen

Abstract:A highly efficient transition-metal-free catalytic system Br(2)/NaNO(2)/H(2)O has been developed for a robust and economic acid-free aerobic oxidation of sulfides. It is noteworthy that the sulfide function reacts under mild conditions without over-oxidation to sulfone. The role of NaNO(2) as an efficient NO equivalent for the activation of molecular oxygen was identified. Under the optimal conditions, a broad range of sulfide substrates were converted into their corresponding sulfoxides in high yields by molecular oxygen. The present catalytic system utilizes cheap and readily available agents as the catalysts, exhibits high selectivity for sulfoxide products and releases only innocuous water as the by-products.