The invention relates to a process for the preparation of N,N′-carbonylbislactams by reaction of phosgene with at least one lactam which is characterized in that the tertiary amine is chosen from the group consisting of non-nucleophilic aliphatic tertiary amines.
N,N′-Carbonylbislactams of high purity are thus obtained with good yields, both in the laboratory and on the industrial scale.
该发明涉及一种通过
光气与至少一种内酰胺反应制备N,N′-羰基双内酰胺的方法,其特点在于所选择的三级胺来自由非亲核脂肪族三级胺组成的群。因此,在实验室和工业规模上均可获得高纯度的N,N′-羰基双内酰胺,并且产率良好。