1: sodium acetate; acetic anhydride / 0.02 h / 20 - 100 °C 2: water / 100 °C 3: palladium 10 on activated carbon; hydrogen / methanol / 9 h / 20 °C 4: hydrogenchloride; water / 3 h / Reflux 5: sodium hydrogencarbonate / 1,4-dioxane; water / 22 h / 20 °C View Scheme