1.1: sodium hexamethyldisilazane / tetrahydrofuran; N,N-dimethyl-formamide / 0.83 h / -20 °C / |Inert atmosphere; |Cooling with acetone-dry ice 2.1: Pd(1,2-bis(diphenylphosphino)ethane)Cl2 / tetrahydrofuran / 0.08 h / |Inert atmosphere; |Cooling with acetone-dry ice 2.2: 5 h / 0 °C / |Inert atmosphere 3.1: ammonium cerium (IV) nitrate / water; dichloromethane; acetonitrile / 0.25 h / 0 °C View Scheme