1: potassium fluoride; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; water / dimethyl sulfoxide / 16 h / 130 °C / Inert atmosphere 2: sodium hydride / tetrahydrofuran; mineral oil / 20 - 50 °C / Inert atmosphere 3: ammonium acetate / 1 h / 180 °C View Scheme

ammonium acetate T=180°C; 1 h;

1: potassium fluoride; water / methanol / 16 h / 90 °C 2: sodium hydride / tetrahydrofuran; mineral oil / 20 - 50 °C / Inert atmosphere 3: ammonium acetate / 1 h / 180 °C View Scheme

1.1: trichlorophosphate / 30 °C 1.2: 18 h / 70 °C 1.3: 16 h / 78 °C 2.1: potassium fluoride; water / methanol / 16 h / 90 °C 3.1: sodium hydride / tetrahydrofuran; mineral oil / 20 - 50 °C / Inert atmosphere 4.1: ammonium acetate / 1 h / 180 °C View Scheme

1: potassium fluoride; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; water / dimethyl sulfoxide / 16 h / 130 °C / Inert atmosphere 2: sodium hydride / tetrahydrofuran; mineral oil / 20 - 50 °C / Inert atmosphere 3: ammonium acetate / 1 h / 180 °C View Scheme