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论文类型：期刊论文

发表时间：2010-01-01

发表刊物：MOLECULES

收录刊物：SCIE、PubMed

卷号：15

期号：1

页面范围：83-92

ISSN号：1420-3049

关键字：aerobic oxidation; sulfids; Br(2); NaNO(2); molecular oxygen

摘要：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.