41270-66-0, 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. 41270-66-0, name is 5-Chloro-2,3-diphenylpyrazine, This compound has unique chemical properties. The synthetic route is as follows.
Trimethylamine (33% ethanol solution, 358 g, 2.0 mol) was added to ethyl acetate (1.3 L) of 5-chloro-2,3-diphenylpiperazine (266 g, 1.0 mol)And stirred at room temperature for 48 hours.A large number of solids are present.filter,The solid was washed with ethyl acetate (2 x 50 mL)Dried in high vacuum to give 283.5 g of a white solid,The yield was 87%.
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Reference:
Patent; Suzhou Guohang Pharmaceutical Technology Co., Ltd.; Mei, Desheng; (11 pag.)CN106467496; (2017); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem