Transamidation Catalyzed by a Recoverable and Reusable PolyDMAP‐Based Hafnium Chloride and Montmorillonite KSF

Abstract

In this article, we described the use of an easily available polymer‐based hafnium chloride and montmorillonite KSF catalyst (HfCl₄/KSF‐polyDMAP) in transamidation under relatively mild conditions. This metal catalyst can be easily recovered and reused in this reaction to give the corresponding amides in good yields.

Keywords:

• Hafnium chloride
• montmorillonite KSF
• polyDMAP
• polymer‐based catalyst
• recoverable and reusable
• transamidation

Acknowledgments

We thank the State Key Project of Basic Research (Project 973) (No. G2000048007), Shanghai Municipal Committee of Science and Technology, and the National Natural Science Foundation of China for financial support (20025206, 203900502, and 20272069).