Oxidation of Amines to Nitroso Compounds
Oxidation of Amines to N-Nitrosamines: Experimental Procedure
The required nitrosyl cation is generated at 10 by the addition of sodium nitrite to concentrated sulfuric acid. The mixture is warmed to room temperature and the amine is added. After first heating the mixture to 70 , it is cooled down to room temperature and after three hours excess nitrite is destroyed by the addition of urea.