申请人:Sumitomo Chemical Company, Limited
公开号:EP0957090A1
公开(公告)日:1999-11-17
The present invention provides a method for producing 3,3,4,4-tetramethyl-2-azetidinone comprising removing a chlorosulfonyl group from 1-chlorosulfonyl-3,3,4,4-tetramethyl-2-azetidinone using an alkali compound in the presence of a phase transfer catalyst, which has excellent operability and high yield and provides easy treatment of the waste liquid.
本发明提供一种制备3,3,4,4-四甲基-2-氮杂环丙酮的方法,包括在相转移催化剂存在下使用碱化合物从1-氯磺酰基-3,3,4,4-四甲基-2-氮杂环丙酮中去除氯磺酰基,该方法具有良好的操作性和高收率,并提供易于处理废液的便利性。