Application of 63897-12-1, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 63897-12-1, name is 2,4-Dichloro-6-methyl-3-nitropyridine, molecular formula is C6H4Cl2N2O2, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
EXAMPLE 238 3-Amino-2,4-bis(methylthio)-6-methylpyridine To a solution of 15.5 g (0.22 mol) sodium methanethiolate in 200 ml methanol was added slowly with stirring under nitrogen a solution of 20.8 g (0.1 mol) 3-nitro-2,4-dichloro-6-methylpyridine in 150 ml methanol. A precipitate formed and the mixture was stirred overnight at room temperature. The mixture was then filtered and the solid was washed first with methanol and then with water. 3-Nitro-2,4-bis(methylthio)-6-methylpyridine (18.9 g, 82% yield) was obtained as a yellow solid, mp 172-176 C. 1 H NMR (CDCl3): delta 2.45 (s, 3H); 2.51 (s, 3H); 2.55 (s, 3H); 6.77 (s, 1H).
According to the analysis of related databases, 63897-12-1, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Pfizer Inc.; US5362878; (1994); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem