Vinyl tris(trimethylsilyl)silanes: substrates for Hiyama coupling
作者:Zhizhong Wang、Jean-Philippe Pitteloud、Lucresia Montes、Magdalena Rapp、Djenny Derane、Stanislaw F. Wnuk
DOI:10.1016/j.tet.2008.03.024
日期:2008.5
The oxidative treatment of vinyl tris(trimethylsilyl)silanes with hydrogen peroxide in aqueous sodium hydroxide in tetrahydrofuran generates reactive silanol or siloxane species that undergo Pd-catalyzed cross-couplings with aryl, heterocyclic and alkenyl halides in the presence of Pd(PPh(3))(4) and tetrabutylammonium fluoride. Hydrogen peroxide and base are necessary for the coupling to occur while