Table 2. Substrate scope with different aryl iodides ^a .

^aReaction conditions: 1 (0.2 mmol), 2a (0.4 mmol), Pd(OAc)₂ (0.02 mmol), PPh₃ (0.04 mmol), NBE (0.2 mmol), and Cs₂CO₃ (0.8 mmol) in DCE (2 mL) at 95 °C for 6 h.

^bThe reaction was conducted in toluene.

^cThe reaction was conducted at 110 °C.