gave target product 3 and silanes 4 and 5. The poor mass balance for the reaction of 6 is probably due to the low stability of difluoroalkene 11. We subsequently asked ourselves: "Is the elimination of HF so easy?" Indeed, the E2 elimination of β-fluoroethyl arene usually requires strong bases such as alkoxides. To answer this question, we treated 2 with K3PO4 in DMF (Figure ). However, 2 remained intact after heating at 60 °C. We then attempted the elimination reaction in the presence of Ni(cod)2 and ICy. The η 2 -complex 13, which is also accessible through the reaction of difluoroalkene 11 and [(ICy)2Ni]2(cod), was observed via F NMR analysis.