Downstream synthetic route of 19064-65-4

19064-65-4 3-Methoxypyridazine 292493, apyridazine compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.19064-65-4,3-Methoxypyridazine,as a common compound, the synthetic route is as follows.

Step 1: A mixture of 3-methoxypyridazine (12.0 mL, 130 mmol) and oxirane-2,2,3,3- tetracarbonitrile (20 g, 140 mmol) in THF (240 mL) was stirred at 0 oC for 2 h and at 4 oC for 40 h. The reaction was concentrated to afford crude dicyano(3-methoxypyridazin-1-ium-1- yl)methanide as a solid, which was taken to the next step without further purification. 1H NMR (DMSO-d6, 400 MHz): delta 8.56 (d, J = 6.0 Hz, 1H), 7.94 (m, 1H), 7.14 (d, J = 9.2 Hz, 1H), 3.97 (s, 3H)., 19064-65-4

19064-65-4 3-Methoxypyridazine 292493, apyridazine compound, is more and more widely used in various fields.

Reference£º
Patent; MERCK SHARP & DOHME CORP.; LIM, Jongwon; ALTMAN, Michael, D.; BRUBAKER, Jason, D.; GIBEAU, Craig, R.; (94 pag.)WO2016/144847; (2016); A1;,
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