文献类型：期刊文献

英文题名：Transition-Metal-Free Highly Efficient Aerobic Oxidation of Sulfides to Sulfoxides under Mild Conditions

作者：Zhang, Hua[1];Chen, Chunyu[1];Liu, Renhua[2];Xu, Qiang[1];Zhao, Weiqie[1]

机构：[1]Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China;[2]E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China

年份：2010

卷号：15

期号：1

起止页码：83

外文期刊名：MOLECULES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000274000000007)】；

基金：The research was supported by Program for Changjiang Scholars and Innovative Research Team in University (IRT0711).

语种：英文

外文关键词：aerobic oxidation; sulfids; Br-2; NaNO2; molecular oxygen

摘要：A highly efficient transition-metal-free catalytic system Br-2/NaNO2/H2O 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 NaNO2 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.