Fig. 2: Substrate Scope^a.

^aReaction conditions: 1a (0.15 mmol), 2a (2.0 equiv), Cu(TFA)₂•H₂O (10 mol %), L3 (20 mol %), and Cy₂NMe (1.5 equiv) in MeCN (0.5 mL) under O₂ at room temperature for 24 h. ^b35 °C, 24 h. ^c12 h. ^dCu(TFA)₂•H₂O (15 mol %), L3 (30 mol %), 12 h. ^e35 °C, 2 h. ^f35 °C, 12 h.