Fig. 3: Scopes of β-ketocarbonyls and aldehydes.

Reaction conditions, unless otherwise noted: 1 l (0.1 mmol), 2 (0.3 mmol), Pd(PPh3)4 (5 mol %), L4 (5 mol %), A1 (20 mol %), and NaBArF4 (6 mol %) in EA (0.3 mL) at 40 °C for 24 h.
Reaction conditions, unless otherwise noted: 1 l (0.1 mmol), 2 (0.3 mmol), Pd(PPh3)4 (5 mol %), L4 (5 mol %), A1 (20 mol %), and NaBArF4 (6 mol %) in EA (0.3 mL) at 40 °C for 24 h.