1: 78 percent / ammoniac / methanol / 16 h / 120 °C / autoclave 2: 50 percent / hydroxide de potassium, brome / H2O / 1.) 0 deg C, 15 min, 2.) 80 deg C, 10 min. 3: 80 percent / acide chlorhydrique 12 N / H2O / 0.25 h View Scheme