申请人:The Upjohn Company
公开号:US04021478A1
公开(公告)日:1977-05-03
Process for preparing carboxylic acids by converting a glycidonitrile to a 2-oxopropionitrile via use of an ionic Lewis acid, and conversion of the 2-oxopropionitrile to the carboxylate salt with a base and of the salt to the carboxylic acid with acid. The process is especially useful for the preparation of 2-(p-isobutylphenyl)propionic acid, (lbuprofen), also known as Motrin, a known and highly active antiinflammatory agent as well as a host of other carboxylic acids which are known in the art as useful compounds.
通过使用离子路易斯酸将环氧丙腈转化为2-氧代丙腈,然后使用碱将2-氧代丙腈转化为羧酸盐,最后使用酸将盐转化为羧酸,制备羧酸的过程。该过程特别适用于制备2-(对异丁基苯基)丙酸,即莫替酸,一种已知且高活性的抗炎药物,以及其他已知有用的羧酸化合物。