Substrate scope of rhodium-catalyzed addition of arylboronic acids to heteroaryl ketones^a.

^aThe reactions were performed with 1 (0.2 mmol), 2 (0.6 mmol, 3.0 equiv.), [Rh(C₂H₄)₂Cl]₂ (1.5 mol%), (S,S,S,S)-WingPhos (3.6 mol%), CsF (0.4 mmol) and B(OMe)₃ (0.2 mmol, 1.0 equiv.) in MTBE at 80 °C for 16 h; isolated yields; ee values were determined by chiral HPLC.

^bReaction temperature was 100 °C.