CAL-B-mediated efficient synthesis of a set of valuable amides by direct amidation of phenoxy- and aryl-propionic acids
作者:Nourelhouda Benamara、Mounia Merabet-Khelassi、Louisa Aribi-Zouioueche、Olivier Riant
DOI:10.1007/s11696-021-01636-5
日期:2021.8
efficient, easy and sustainable amidation of a set of non-activated carboxylic acids with anilines, assisted by CAL-B, as biodegradable catalyst, is reported. The enzymatic amidation reactions are performed on set of nonsteroidal anti-inflammatory drugs (NSAIDs), phenoxypropionic acid and protected-prolines by direct condensation of one equivalent of carboxylic acids and two equivalents of anilines
报道了在 CAL-B 的辅助下,作为可生物降解的催化剂,一组未活化的羧酸与苯胺的高效、简单和可持续的酰胺化。酶酰胺化反应是在一组非甾体抗炎药 (NSAID)、苯氧基丙酸和受保护的脯氨酸上进行的,方法是在 80°C 下反应 72 小时后,在庚烷中直接缩合一当量羧酸和两当量苯胺衍生物. 回收得到的羧酰胺,分离的化学产率介于中等和极好之间。首次报道了其中的14个,得到了X射线晶体:N-(4-碘苯基)-2-(4-异丁基苯基)丙酰胺1d。