3-OXACAPROLACTAM IS PREPARED BY A PROCESS WHICH COMPRISES: CONTACTING AN ORGANIC ACID ANHYDRIDE SOLUTION OF A CYANOALKOXYALKANOATE WITH HYDROGEN IN THE PRESENCE OF A NOBLE METAL HYDROGENATION CATALYST TO PREPARE AN AMIDE-ESTER; AND HEATING THE AMIDE-ESTER IN EXCESS WATER AT A TEMPERATURE ABOVE ABOUT 200.degree. C.
3-OXACAPRO
LACTAM是通过以下过程制备的:将
氰基烷氧基烷酸酯的有机酸酐溶液与氢在贵
金属氢化催化剂的存在下接触,制备酰胺酯;并在超过约200°C的温度下在过量
水中加热酰胺酯。