Application of 58596-88-6 , The common heterocyclic compound, 58596-88-6, name is 2,6-Dichloro-3-methyl-5-nitropyridine, molecular formula is C6H4Cl2N2O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
(2e) 6-Chloro-5-methyl-3-nitro-2-pyridinamine [Formula 22]; A mixture of 2,6-dichloro-3-methyl-5- nitropyridine (10.41 g, 50.3 mmol), 28% aqueous ammonia solution (17 ml, 0.25 mol), potassium carbonate (10.4 g, 75.5 mmol) and t-butanol (167 ml) was stirred overnight at 60C under nitrogen atmosphere. After stirring at room temperature for 3 hours, a precipitate was filtered and then washed three times with water, thereby yielding the title compound (4.25 g, 22.7 mmol, 45%) as a yellow solid. ¹H NMR(400MHz, QMSO-D6) No. ppm; 2.23,(3H, s), 8.04(2H, br s), 8.39(1H, s).
The synthetic route of 58596-88-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; EISAI CO., LTD.; WO2005/103049; (2005); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem