Abstract Reaction of R f I (R f C 6 F 13 or C 8 F 17) with Cd powder in DMF at room temperature under N 2 afforded R f CdX (X I or R f) in moderate (48–52%) yield. Although no reaction was observed with Cd powder and R f I (R f C 6 F 13 or C 8 F 17) in CH 3 CN at room temperature, reaction at reflux gave the homocoupled products C 6 F 13 C 6 F 13 (67%) and C 8 F 17 C 8 F 17 (61%), respectively. No F-alkylcadmium reagent was ...