1: With hydrogenchloride; formic acid in water 2: With hydrogen; palladium on activated carbon in water Product distribution / selectivity;

1: With sulfuric acid in methanol T=0 - 5°C; 2 h; 2: With formic acid; sulfuric acid; hydrogen; palladium on activated carbon in water P=4125.41 Torr; 24 h; 3: With sodium hydroxide in water T=10°C; 1.5 h;