Related Products of 84539-34-4, 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.84539-34-4, name is 4-Amino-3,5-dibromopyridine, molecular formula is C5H4Br2N2, molecular weight is 251.91, as common compound, the synthetic route is as follows.
(2) diazotization reaction:A 200 ml three-necked flask was charged with 0.045 mol of concentrated sulfuric acid having a concentration of 17.5 mol / L and 2.52 g (0.01 mol)3,5-dibromo-4-aminopyridine,After 3,5-dibromo-4-aminopyridine is completely dissolved,1.78g (0.014mol) nitrosylsulfuric acid was added dropwise at 52 C, the end of the reaction was tested by using potassium iodide starch test paper. When the reaction solution turned the potassium iodide starch test paper blue and did not fade, the reaction was stopped for 1.2h,To give 3,5-dibromo-4-pyridin-sulfonic acid
Statistics shows that 84539-34-4 is playing an increasingly important role. we look forward to future research findings about 4-Amino-3,5-dibromopyridine.
Reference:
Patent; Shanghai Wohua Chemical Co., Ltd.; Hu Yadong; Yang Benmei; (5 pag.)CN106957259; (2017); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem