Siloxane based syntheses of fluorous ethenes and their tandem Heck reactions with aryl iodides

► Perfluoroalkyl-ethenes are formed by the TBAF·3H2O or KF/NEt3/H2O treatment of organosilicons in DMF. ► Tandem-Heck coupling reactions using fluorous silanes as olefin precursors were performed. ► A silica supported 'perfluorooctyl-ethene surrogate' was synthesized and applied for a Heck coupling reaction.