tetrabutylammomium bromide; sodium carbonate; tetrakis(triphenylphosphine) palladium(0) in water T=130°C; Suzuki coupling; 0.333333 h; microwave irradiation;

1: 89 percent / 2-ethoxy ethanol; Cu2O; K2CO3 / Cu / 24 h / 130 °C 2: 99 percent / phosphorus oxybromide / 2 h / 120 °C View Scheme

copper(I) oxide; copper; potassium carbonate in 2-ethoxy-ethanol T=130°C; 24 h;