The structure of 13 was determined using NMR spectroscopy as well as X-ray crystallography. Complex 13 was not observed in the absence of K3PO4. These results suggest that Ni/ICy promoted the elimination of HF by K3PO4. It should be noted here that we did not employ a strong base such as an alkoxide, which typically promotes E2 elimination. Our mechanistic study suggested that this step is promoted by Ni/ICy, although the reason for this remains unclear at this stage.