专利名称 | 3, 3 - Difluoro -2 - hydroxypropionic acid practical manufacturing method | ||
申请号 | JP2015066966 | 申请日 | |
公开(公告)号 | JP6459709B2 | 公开(公告)日 | 2015-03-27 |
申请(专利权)人 | 发明人 | 山崎 たか子; 岡本 隆一; 石井 章央 | |
专利来源 | 国家知识产权局 | 转化方式 | |
摘要 |
Disclosed is a practical method for production of 3, 3-difluoro-2-hydroxypropionic acid, which is important as pharmaceutical and agrichemical intermediates. The method includes forming a 4, 4-difluoro-2, 2-dichloro-3-oxobutanoic acid ester by reaction of a 4, 4-difluoro-3-oxobutanoic acid ester with chlorine (Cl2), forming 3, 3-difluoro-1, 1-dichloro-2-propanone by reaction of the chlorination product with an acid, and then, reacting the degradation product with a basic aqueous solution. |
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