1: 86 percent / potassium carbonate / 6 h / 20 °C 2: 76 percent / dichlorobis(triphenylphosphine)nickel(II) / diethyl ether / 96 h / Heating View Scheme

1: 84 percent / Pd2(dba)3*CHCl3; 1,2-bis(diphenylphosphino)ethane; trimethylsilyl azide / toluene / 1.17 h / 20 - 40 °C 2: 52 percent / Pd(PPh3)4 / octane / 1.17 h / 20 - 100 °C 3: 70 percent / TBAF / tetrahydrofuran / 1 h / 50 °C View Scheme