The reactivity was influenced by the position of the extra fluorides, with 3ab giving excellent yield whereas 3ac required prolonged reaction time and heating to reach full conversion. Interestingly, a symmetric, highly electron-deficient iodonium salt could be utilized in the reaction to produce 3ae. To our satisfaction, the introduction of an electron deficient pyridiyl ring, which could also undergo SNAr, did not interfere with the reaction and the desired product 3af was obtained in 73% yield.