Table 2. Substrate scope of (hetero)arylboronic acid partners ^a .

^aGeneral conditions: (hetero)arylboronic acid (0.6 mmol), CF₃CH₂I (0.4 mmol), base (0.8 mmol), 2.5 mol% precatalyst loading, DME (2.0 mL), 80 °C.

^bIsolated yield.

^cYield determined by ¹⁹F NMR spectroscopy using PhCF₃ as an internal standard due to the volatility of naphthalene products. Data in parentheses refer to yields of isolated products.

^d5.0 mol% precatalyst loading.