potassium carbonate; tetrakis(triphenylphosphine) palladium(0) in ethylene glycol dimethyl ether; water T=90°C; 24 h;

sodium carbonate in ethanol; benzene

triethylamine in acetonitrile 8 h; Heating;

trichlorophosphate 1.5 h; Heating;

1: phosphorus pentachloride / CH2Cl2 / 3 h 2: ammonium hydroxide / CH2Cl2 / 1 h / 0 °C 3: 80 percent / phosphorus oxychloride / 1.5 h / Heating View Scheme

1: sodium methoxide / pyridine / 10 h / 40 °C 2: 10percent hydrochloric acid / 0.33 h 3: 58 percent / 57percent perchloric acid / acetic acid / 0.25 h 4: 51 percent / ammonium acetate, / acetic acid / 3 h / Heating 5: 76 percent / potassium permanganate, potassium hydroxide / H2O; dioxane / 3 h / 25 - 40 °C 6: phosphorus pentachloride / CH2Cl2 / 3 h 7: ammonium hydroxide / CH2Cl2 / 1 h / 0 °C 8: 80 percent / phosphorus oxychloride / 1.5 h / Heating View Scheme

1: ammonium hydroxide / CH2Cl2 / 1 h / 0 °C 2: 80 percent / phosphorus oxychloride / 1.5 h / Heating View Scheme

1: 76 percent / potassium permanganate, potassium hydroxide / H2O; dioxane / 3 h / 25 - 40 °C 2: phosphorus pentachloride / CH2Cl2 / 3 h 3: ammonium hydroxide / CH2Cl2 / 1 h / 0 °C 4: 80 percent / phosphorus oxychloride / 1.5 h / Heating View Scheme