hydrogen; nickel in methanol P=2585.81 Torr; 2 h;

1: 4-amino-2-methyl-benzoic acid ethyl ester With hydrogenchloride; sodium nitrite in water T=0 - 5°C; 2: With sodium carbonate in water 3: potassium cyanide; copper (I) cyanide in water T=0 - 20°C;