tetrakis(triphenylphosphine) palladium(0); potassium carbonate; potassium iodide in N,N-dimethyl-formamide T=120°C; Molecular sieve;

tetrakis(triphenylphosphine) palladium(0); potassium carbonate; potassium iodide in N,N-dimethyl-formamide T=120°C; Molecular sieve;

potassium fluoride; (NH4)2S2O8; CuSO4‵5H2O; silver nitrate in water T=20°C; 6 h; Inert atmosphere;

potassium tert-butylate; oxygen in dimethyl sulfoxide 0.0833333 h; Ambient temperature;

1: 93 percent / triethylamine / benzene / Ambient temperature 2: 90 percent / t-BuOK, O2 / dimethylsulfoxide / 0.08 h / Ambient temperature View Scheme

1: 93 percent / triethylamine / benzene / Ambient temperature 2: 90 percent / t-BuOK, O2 / dimethylsulfoxide / 0.08 h / Ambient temperature View Scheme

1.1: benzotriazol-1-ol / dichloromethane / 0.25 h / 20 °C / |Inert atmosphere 1.2: 0.25 h / 0 °C / |Inert atmosphere 1.3: 0 - 20 °C / |Inert atmosphere 2.1: silver nitrate; CuSO4‵5H2O; potassium fluoride; (NH4)2S2O8 / water / 6 h / 20 °C / |Inert atmosphere View Scheme