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Reaction of Singlet Oxygen with Thioanisole in Ionic Liquid-Acetonitrile Binary Mixtures

  作者 BACIOCCHI ENRICO; CHIAPPE CINZIA; FASCIANI CHIARA; LANZALUNGA OSVALDO; LAPI ANDREA  
  选自 期刊  Organic Letters;  卷期  2010年12-22;  页码  5116-5119  
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[摘要]A study of the reaction of thioanisole with singlet oxygen in different ionic liquid acetonitrile binary mixtures has shown that ILs are able to accelerate the thioanisole sulfoxidation when used as additives. With imidazolium ILs, the maximum efficiency is reached at X-IL similar to 0.1-0.2, whereas for the pyrrolidinium IL a plateau is reached. These results are discussed in terms of the ILs' tendency to form ionic aggregates and of differences in sulfoxidation reaction mechanism.

 
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