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.88912-27-0, name is 3-Chloroisonicotinic acid, molecular formula is C6H4ClNO2, molecular weight is 157.55, as common compound, the synthetic route is as follows.Product Details of 88912-27-0
A mixture of 0.35 g of 2-amino-4-trifluoromethoxy phenol, 0.29 g of 3- chloroisonicotinic acid, 1.04 g of (benzotriazole-l-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (hereinafter, referred to as a BOP reagent), 0.24 g of triethylamine and 5 ml of DMF was stirred at room temperature for two hours. Water was added to the reaction mixture, precipitated solid was collected by filtration. The resultant solid was dissolved in ethyl acetate. Then, the organic layer was washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.The residue was subjected to silica gel column chromatography to give 0.43 g of 3-chloro- N-[2-hydroxy-5-(trifluoromethoxy)phenyl]isonicotinamide.-NMR (DMSO-d6) delta: 10.37 (br s, 1H), 10.15 (br s, 1H), 8.75-8.73 (m, 1H), 8.64-8.61 (m, 1H), 8.04-8.01 (m, 1H), 7.63-7.60 (m, 1H), 7.07-7.02 (m, 1H), 6.98-6.94 (m, 1H)
At the same time, in my other blogs, there are other synthetic methods of this type of compound,88912-27-0, 3-Chloroisonicotinic acid, and friends who are interested can also refer to it.
Reference:
Patent; SUMITOMO CHEMICAL COMPANY, LIMITED; OTSUKI, Junko; WO2011/49220; (2011); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem