Improved process for carbonylating epoxides

• Main Authors: KOHL BERNHARD, UHRIG, JOACHIM
• Format: Patent
• Language: Chinese; English
• Published: 26.12.2023
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

A continuous process for carbonylation of epoxides and/or lactones with carbon monoxide with improved catalyst efficiency and reactor productivity includes reacting epoxy resins and/or lactones in a solvent with carbon monoxide in the presence of a catalyst under water at a temperature of at least 80 DEG C and an amount of up to about 150 ppm of the effluent from the reactor. The amount of water in any component used in the process of the invention is desirably substantially lower than the above water concentration in the effluent from the reactor. Likewise, in the process of the invention, the amount of polyether by-products is substantially absent. The process may be performed without catalyst recycle. 一种具有改进的催化剂效率和反应器生产率的用一氧化碳使环氧化物和/或内酯羰基化的连续方法包括使溶剂中的环氧树脂和/或内酯与一氧化碳在催化剂存在下在至少80℃的温度和来自所述反应器的流出物的至多约150ppm的量的水下反应。本发明的方法中使用的任何成分中水的量理想地基本上低于来自所述反应器的所述流出物中的上述水浓度。同样，在本发明的方法中，聚醚副产物的量基本上不存在。所述方法可在无催化剂再循环的情况下进行。