TBAF-Catalysed Facile Synthesis of Unsymmetrical Diaryl Thioethers via Mild S<sub>N</sub>Ar Reactions
作者:Baohua Yu、Xufeng Zang、Xiaochun Yu、Qing Xu
DOI:10.3184/030823410x12766133486958
日期:2010.6
By using tetrabutylammonium fluoride as the catalyst, the synthesis of unsymmetrical diaryl thioethers could be easily achieved in high yields via a mild nucleopilic aromatic substitution reaction of aryl fluorides and phenylthiotrimethylsilane.
Microwave irradiation was found to promote tetrabutylammonium fluoride catalyzed nucleophilic aromatic substitution of arylfluorides and arylthiotrimethylsilanes, affording high yields of unsymmetrical diaryl thioethers efficiently under mild, transition-metal- and base-free conditions. Microwave showed unusual improvement on the reaction in not only the conditions and reaction rate, but also in selectivity