Related Products of 6945-67-1, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.6945-67-1, name is 2-Bromo-4-nitropyridine, molecular formula is C5H3BrN2O2, molecular weight is 202.99, as common compound, the synthetic route is as follows.
Into a 250-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed a mixture of 4-[[4-nitro-3-(trifluoromethyl)phenyl] amino]cyclohexan-l-ol (12 g, 39 mmol, 1.3 eq.) in N-dimethylformamide (100 mL), sodium hydride (1.9 g, 79 mmol, 2 eq.), and 2-bromo-4-nitropyridine (6.2 g, 31 mmol). The resulting solution was stirred for 1.5 hours at room temperature in an oil bath. The reaction was then quenched by the addition of 200 mL of water. The resulting solution was diluted with 200 mL of ethyl acetate. The resulting mixture was washed with water and then brine. The organic layer was dried over anhydrous sodium sulfate. The solids were filtered out and the solution was concentrated under vacuum to provide 10 g (56%) of aniline as a yellow solid.
The chemical industry reduces the impact on the environment during synthesis 6945-67-1, I believe this compound will play a more active role in future production and life.
Reference:
Patent; MERIAL INC.; LONG, Alan; WILKINSON, Douglas, Edward; (224 pag.)WO2016/118638; (2016); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem