Scheme 4. Scope of (Hetero)arene Coupling Partnersa.

aGeneral conditions: 1 (0.2 mmol), 2 (1.5 equiv), Cs2CO3 (1.5 equiv), DMSO (1.5 mL). Isolated yields are provided. b2.0 equiv of Cs2CO3.

aGeneral conditions: 1 (0.2 mmol), 2 (1.5 equiv), Cs2CO3 (1.5 equiv), DMSO (1.5 mL). Isolated yields are provided. b2.0 equiv of Cs2CO3.