With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.75336-86-6,(R)-2-Methylpiperazine,as a common compound, the synthetic route is as follows.
(R)-2-methylpiperazine (13.85 g, 138 mmol) and sodium bicarbonate (52.3 g, 622 mmol) were partially dissolved in a mixture of water (182 ml) and acetone (112 ml). A solution of benzoyl chloride (17.7 ml, 152 mmol) in acetone (56 ml) was added dropwise over 1 hour with vigorous stirring. After stirring for 16 hours at RT, the acetone was stripped on the rotovap, water (400 ml) was added, and the solution acidified (6M HCl) to a pH less than 2. The aqueous phase was washed three times with dichloromethane (200 ml) and then 5M sodium hydroxide was added to bring pH over 12. The resulting solution was extracted three times with dichloromethane (200 ml), dried (MgSO4) and evaporated to give (R)-(3- methylpiperazin-l-yl)(phenyl)methanone 62 as a yellow oil, 15.1 g (54percent of theoretical). LC/MS m/z = 205 (M+H+).
75336-86-6, The synthetic route of 75336-86-6 has been constantly updated, and we look forward to future research findings.
Reference：
Patent; AMGEN INC.; WO2009/35568; (2009); A1;,
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