1.1: sodium hydride / mineral oil; N,N-dimethyl acetamide / 0.17 h / 0 °C / |Inert atmosphere 1.2: 2 h / 20 °C / |Inert atmosphere 2.1: bis[2-(diphenylphosphino)phenyl] ether; [Pd(CH3CN)4]*[BF4]2; potassium carbonate / N,N-dimethyl-formamide / 6 h / 60 °C / |Inert atmosphere View Scheme