Analyzing the synthesis route of 2-Chloro-3-fluoro-5-nitropyridine

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1079179-12-6, its application will become more common.

Electric Literature of 1079179-12-6 ,Some common heterocyclic compound, 1079179-12-6, molecular formula is C5H2ClFN2O2, 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.

To a solution of 2-chloro-3-fluoro-5-nitropyridine (3.0 g, 15.3 mmol) in DMF (30 mL) was added thiomorpholine (1.6 g, 15.3 mmol) and DIEA (5.3 mL, 30.6 mmol). The mixture was stirred at 60C for 16 hours. The reaction was cooled to roomtemperature, and then then was diluted with water (50 mL). The precipitated solid was collected by filtration, and dried to give 4-(3-fluoro-5-nitropyridin-2-yl)thiomorpholine asa solid. ?HNMRoe 8.87 (s, 1H), 7.98 (dd, J= 2.0, 13.6Hz, 1H), 4.15-4.12 (m, 4H), 2.76-2.74 (m, 4H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1079179-12-6, its application will become more common.

Reference:
Patent; MERCK SHARP & DOHME CORP.; YANG, Lihu; OLSEN, David B.; YOUNG, Katherine; SU, Jing; MANDAL, Mihir B.; SUZUKI, Takao; YOU, Lanying; (85 pag.)WO2017/66964; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem