1: 78 percent / palladium(II) chloride / acetonitrile / 3 h / Heating 2: 100 percent / 2 N alcoholic potassium hydroxide, one drop of water / 1 h / 70 °C View Scheme

methyl vinyl ketone; palladium dichloride in acetonitrile T=60°C; 24 h; Inert atmosphere;

Multi-step reaction with 2 steps 1: triethylamine / toluene / 6 h / |Cooling with ice; |Inert atmosphere2: tetrakis(triphenylphosphine) palladium(0); copper(l) iodide; triethylamine / |Inert atmosphere