The invention is directed to a process to prepare ε-caprolactam and/or unsaturated ε-caprolactam from a pentenamide by contacting the pentenamide with a mixture of hydrogen and carbon monoxide in the presence of a solvent and a catalyst system comprising of a Group 8-10 metal and a phosphorus-donor ligand. The ligand may be a xantphos-type ligand.
该发明涉及一种从
戊烯酰胺通过将
戊烯酰胺与氢和
一氧化碳的混合物在溶剂和催化剂体系的存在下接触而制备ε-己内酰胺和/或不饱和ε-己内酰胺的方法。催化剂体系包括第8-10族
金属和
磷-供体
配体。该
配体可以是一种黄膜
磷配体。