Efficient synthesis of unsymmetrical diaryl thioethers via TBAF-mediated denitrative substitution of nitroarenes with PhSTMS under mild and neutral conditions
作者:Xiao-Chun Yu、Bo Li、Bao-Hua Yu、Qing Xu
DOI:10.1016/j.cclet.2013.04.011
日期:2013.7
Abstract Tetrabutylammonium fluoride (TBAF) effectively facilitated a denitrative substitution reaction of electron-deficient nitroarenes with phenylthiotrimethylsilane (PhSTMS) under mild and base-free neutral conditions at room temperature, providing a practical and efficient synthesis of useful unsymmetrical diaryl thioethers. Nitroarenes bearing ortho- and para -positioned electron-withdrawing groups
The present invention relates to a compound of formula (I), to the process for preparing such compounds and to their use in the treatment of a pathological condition or disease susceptible to amelioration by CRTh2 antagonist activity.
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.