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
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.