1: With dihydrogen peroxide; acetic acid T=60 - 75°C; 20 - 25 h; 2: With sodium hydroxide in water

1: 3-(3-chlorophenethyl)-pyridine N-oxide With N,N-dimethylcarbamoyl chloride in acetonitrile T=35 - 40°C; 1 - 3 h; 2: sodium cyanide in water; acetonitrile T=-5 - 0°C; 3 - 4 h; 3: With sodium hydroxide in water; acetonitrile 2 - 3 h;