copper(l) iodide; N-butylamine; tetrakis(triphenylphosphine) palladium(0) in diethyl ether 6 h;

1: n-BuNH2; CuI / Pd(PPh3)4 / diethyl ether 2: 86 percent / potassium carbonate / methanol 3: 86 percent / n-BuNH2; CuI / Pd(PPh3)4 / diethyl ether / 6 h View Scheme

1: 86 percent / potassium carbonate / methanol 2: 86 percent / n-BuNH2; CuI / Pd(PPh3)4 / diethyl ether / 6 h View Scheme