In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 117519-09-2 as follows., 117519-09-2
2-Chloro-6-(trifluoromethyl)pyridin-3-amine (3 g, 15.263 mmol, 1.000 equiv) was added into a mixture of CuBr2 (6.8 g, 30.445 mmol, 2.000 equiv) and t-BuONO (3.1 g, 30.062 mmol, 2.000 equiv) in CH3CN (100 mL). The resulting solution was stirred for 2 h at room temperature. The reaction mixture was diluted with water, extracted with diethyl ether, dried over sodium sulfate, and concentrated under vacuum. This resulted in the title compound (3 g, 75%) as a brown liquid.
The chemical industry reduces the impact on the environment during synthesis 117519-09-2, I believe this compound will play a more active role in future production and life.
Reference:
Patent; F. HOFFMANN-LA ROCHE AG; GENENTECH, INC.; CHEN, Huifen; CHU, Yanyan; DO, Steven; ESTRADA, Anthony; HU, Baihua; KOLESNIKOV, Aleksandr; LIN, Xingyu; LYSSIKATOS, Joseph P.; SHORE, Daniel; VERMA, Vishal; WANG, Lan; WU, Guosheng; YUEN, Po-wai; WO2015/52264; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem