1: dicyclohexyl(2′,6′-dimethoxybiphenyl-2-yl)phosphine; palladium diacetate; sodium carbonate / 1,4-dioxane; water / 48 h / Reflux 2: ethylenediamine / 1,4-dioxane; propan-1-ol; water / 24 h / Reflux View Scheme

palladium diacetate; triphenylphosphine on polystyrene in tetrahydrofuran T=140 - 155°C; 0.0333333 h; microwave irradiation;

potassium phosphate; Cl2Ni(1,2-bis(diphenylphosphino)ethane); triphenylphosphine in toluene T=80°C; Suzuki cross-coupling; 14 h;