Scheme 3. Varying the Radical Acceptor and the Perfluoroalkyl Iodides,

Reaction conditions: 1 (0.2 mmol), 2d (0.5 mmol, 2.5 equiv), 3 (0.4 mmol, 2.0 equiv), DBU (0.6 mmol), NMP (0.5 mL), 10 W blue LED, rt, Ar, 16 h.

Isolated yield based on 1.