triethylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide in benzene T=20°C; 0.333333 h;

1: 85 percent / SOCl2 / 4 h / Heating 2: 70 percent / triethylamine / Pd(PPh3)2Cl2; CuI / benzene / 0.33 h / 20 °C View Scheme