sodium chloride; sulfuric acid; iron; acetic acid in water

sulfolane; trichlorophosphate in acetonitrile T=70°C; 0.666667 h; Yield given;

1: phosphorous oxychloride, sulfolane / acetonitrile / 0.67 h / 70 °C 2: 92.6 percent / potassium iodide, sodium metabisulfite / butan-2-one; H2O / Heating; other reagent: hydriodic acid View Scheme

hydrogen in methanol; water T=20°C;