The invention relates to a process for preparing a lactam from an alicyclic ketoxime in the presence of a lactim-O-sulphonic acid and a solvent, the reaction being carried out in the presence of an acid cation exchanger. The invention relates in particular to a process in which the alicyclic ketoxime is represented by the following general formula:
where R is a linear or branched alkylidene group containing from 3 to 20 carbon atoms.
本发明涉及一种脂环族酮
肟在内酰胺-O-
磺酸和溶剂存在下制备内酰胺的工艺,该反应在酸阳离子交换剂存在下进行。本发明尤其涉及一种
脂环酮肟由以下通式表示的工艺:
式中 R 为含有 3 至 20 个碳原子的直链或支链亚烷基。