Perfluoroalkyl-ethenes (RfnCHCH2, 6a–c; a, n= 4; b, n= 6; c, n= 8) were prepared in good isolated yields (67–89%) and high purity (GC assay> 98%) from various fluorinated organosilanes in fluoride-anion assisted protodesilylation reactions. The environmentally more benign 'KF/NEt3/H2O'reagent combination introduced here was found as an effective substitute for the commonly used tetrabutylammonium-fluoride trihydrate (TBAF· 3H2O) as ...
