1: With sodium hydrogencarbonate in methanol; dichloromethane; water 0.25 h; 2: With water; potassium hydroxide in methanol; dichloromethane T=70°C; 8 h; 3: With hydrogenchloride in methanol; dichloromethane; water T=20°C; pH=11;
1: With potassium hydroxide in water T=5 - 70°C; 4 h; 2: With sodium hydroxide in water; toluene T=20 - 25°C; 3: With hydrogenchloride in water; acetone; toluene T=20 - 25°C; pH=2.5 - 3.0;
