1: With potassium ethanolate; hydrogen; palladium on activated carbon in ethanol P=6205.94 - 7757.43 Torr; 6 h; 2: With hydrogenchloride in water

1: With triethylamine in ethanol T=0 - 10°C; 10 h; 2: With acetic acid in ethanol T=0°C; 0.25 h; Heating / reflux; Product distribution / selectivity;