(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in diethyl ether Ambient temperature;

1: 82 percent / Br2 / CH2Cl2 / 15 h / Ambient temperature 2: 66 percent / PdCl2(dppf) / diethyl ether / Ambient temperature View Scheme

1: 84 percent / PdCl2(dppf) / diethyl ether / 2 h / 0 - 5 °C 2: 82 percent / Br2 / CH2Cl2 / 15 h / Ambient temperature 3: 66 percent / PdCl2(dppf) / diethyl ether / Ambient temperature View Scheme

sodium hydroxide; palladium amalgam; hydrazine hydrate in water