bis(triphenylphosphine)palladium(II)-chloride; triphenylphosphine in N,N-dimethyl-formamide T=120°C;

1: 94 percent / 2,4,4,6-tetrabromo-2,5-cyclohexadienone / CH2Cl2 / 1 h / -10 - 0 °C 2: 96 percent / triphenylphosphine, bis(triphenylphosphine)palladium(II) chloride / dimethylformamide / 120 °C View Scheme