1: ammonia; water / ethyl acetate / 1 h / 10 °C 2: sodium hypochlorite; water; sodium hydroxide / 14 h / 40 °C 3: N-ethyl-N,N-diisopropylamine / dichloromethane / 16 h 4: hydrogenchloride; water / methanol / 1 h View Scheme

ammonia in water; ethyl acetate T=10°C; 1 h;