1: With lithium hydroxide in ethanol 3.5 h; 2: With hydrogenchloride in ethanol; water

1: With methanol; sodium hydroxide; water T=20°C; 24 h; 2: With hydrogenchloride; water in ethyl acetate pH=~ 5;

1: With potassium carbonate in chloroform T=20°C; 0.166667 h; 2: With lithium hydroxide in ethanol; water T=20°C; 4 h; 3: With hydrogenchloride in water T=0°C;