Photoinduced Nucleophilic Substitution of Aryl Halides with Potassium Thioacetate – A One-Pot Approach to Aryl Methyl and Diaryl Sulfides
作者:Luciana C. Schmidt、Valentina Rey、Alicia B. Peñéñory
DOI:10.1002/ejoc.200500955
日期:2006.5
Aryl methyl sulfides and diaryl sulfides were prepared by photoinduced reactions of potassium thioacetate with aryl halides under entrainment conditions. Without isolation, the arene thiolates obtained by the aromatic substitution were quenched with methyl iodide to afford the aryl methyl sulfides in 26–59 % yields in a “one-pot” procedure together with the diaryl sulfides in variable yields (3–31 %)
芳基甲基硫化物和二芳基硫化物是通过硫代乙酸钾与芳基卤化物在夹带条件下的光诱导反应制备的。在不进行分离的情况下,通过芳烃取代获得的芳烃硫醇盐用碘甲烷淬灭,以“一锅法”程序以 26-59% 的产率提供芳基甲基硫醚以及不同产率 (3-31%) 的二芳基硫醚. 通过优化反应条件,可以改善 Ar2S 的形成,从中等产率到良好产率(64-83%)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)