Application of 2-Chloropyrazine

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 14508-49-7.

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 14508-49-7, name is 2-Chloropyrazine, This compound has unique chemical properties. The synthetic route is as follows., name: 2-Chloropyrazine

To a DMSO solution (350 mL) of chloropyrazine (21.3 g, 187 mmol) and 1-Boc-piperazine (31.6 g, 170 mmol) was added Cs2CO3 (77 g, 237 mmol). The slurry was stirred at 60 C. for 24 hr, and at 100 C. for an additional 24 hr. The cooled mixture was diluted with water (800 mL), and extracted with diethyl ether (3*500 mL). The combined organic extracts were washed with brine, dried over MgSO4, and evaporated to a brown oil. The crude material was purified on a plug (200 g) of silica gel eluding with 10-40% ethyl acetate in hexane to produce 31.7 g (71%) of the desired compound in the form of a pale yellow solid. MS: m/z=265.1 (M+H).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 14508-49-7.

Reference:
Patent; Barta, Thomas E.; Becker, Daniel P.; Bedell, Louis J.; Boehm, Terri L.; Brown, David L.; Carroll, Jeffery N.; Chen, Yiyuan; Fobian, Yvette M.; Freskos, John N.; Gasiecki, Alan F.; Grapperhaus, Margaret L.; Heintz, Robert M.; Hockerman, Susan L.; Kassab, Darren J.; Khanna, Ish K.; Kolodziej, Stephen A.; Massa, Mark A.; McDonald, Joseph J.; Mischke, Brent V.; Mischke, Deborah A.; Mullins, Patrick B.; Nagy, Mark A.; Norton, Monica B.; Rico, Joseph G.; Schmidt, Michelle A.; Stehle, Nathan W.; Talley, John J.; Vernier, William F.; Villamil, Clara I.; Wang, Lijuan J.; Wynn, Thomas A.; US2005/9838; (2005); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem