Synthetic Route of 69214-33-1, 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. 69214-33-1, name is 8-Chloroimidazo[1,2-a]pyrazine, This compound has unique chemical properties. The synthetic route is as follows.
8-Chloroimidazo[1,2-a]pyrazine (400 mg, 2.6 mmol) and tert-butyl hydrazinecarboxylate (516.4 g, 3.9 mmol) were dissolved in THF (8 mL), sodium hydride (312.5 mg, 7.8 mmol) was added, and the mixture stirred at 30 C. for 16 h. Saturated aqueous NH4Cl (10 mL) was added and the mixture was extracted with EtOAc (10 mL*2). The combined organic layers were dried over Na2SO4, filtered, and the filtrates concentrated under reduced pressure to afford a crude product as a black oil. The crude product was purified by flash column chromatography over silica gel (petroleum ether/ethyl acetate from 100/0 to 30/70). The solvent was concentrated under reduced pressure to afford compound 65a as a yellow solid (220 mg, 28%). LCMS (ESI): m/z 250.1 [M+H]+.
The chemical industry reduces the impact on the environment during synthesis 8-Chloroimidazo[1,2-a]pyrazine. I believe this compound will play a more active role in future production and life.