申请人:Societe d'Etudes de Produits Chimiques
公开号:US04131617A1
公开(公告)日:1978-12-26
A process for the preparation of an isobutyramide is disclosed. A sodium phenolate is prepared by reacting sodium with a phenol in ethanol, an excess of toluene is added to the solution to form an ethanol/toluene azeotrope which azeotrope is then removed by distillation whereafter a N-cyanoalkyl .alpha.-bromo-isobutyramide is added, the mixture is refluxed for a period of 6-15 hours after which water is added to form a precipitate which is then removed from the reaction mixture.
本发明揭示了一种制备异丁酰胺的过程。通过将钠与苯酚在乙醇中反应制备出苯酚钠,向溶液中加入过量的甲苯以形成乙醇/甲苯共沸物,然后通过蒸馏将共沸物去除,随后加入N-氰基烷基-α-溴异丁酰胺,混合物回流6-15小时后加入水形成沉淀,然后将沉淀从反应混合物中去除。