1: 78 percent / n-butylamine, copper iodide / Pd<P(Ph3)>4 / benzene / 3 h / Ambient temperature 2: Bu4NF / tetrahydrofuran / 2 h / Ambient temperature 3: 85 percent 4: 65 percent / Zn, MeOH / H2O / 5 h / 30 °C 5: 95 percent / K2CO3 / methanol; H2O / Ambient temperature View Scheme