triphenylphosphine; bis(dibenzylideneacetone)-palladium(0) in tetrahydrofuran 2 h; Ambient temperature;

1: 95 percent / pyridine / CH2Cl2 / 16 h / 20 °C 2: 86 percent / Palladium bis(dibenzylideneacetone), triphenylphosphine / tetrahydrofuran / 2 h / Ambient temperature View Scheme