Recent Advances in Synthesis of Nitrogen‐Containing Heterocyclic Compounds Catalyzed by Schiff–Base Complexes

In recent years, there has been a significant surge in the catalytic utilization of Schiff–base complexes. These compounds prove to be highly effective as homogeneous catalysts in organic syntheses. Furthermore, by immobilizing them on inorganic substrates, they have demonstrated their potential as heterogeneous catalysts in organic synthesis. Among the vast array of organic reactions, the synthesis of heterocyclic compounds holds a prominent position. These reactions offer a pathway to creating heterocycles with diverse variations. Therefore, this review aims to delve into the latest research findings published since 2020 in synthesizing nitrogen‐containing heterocycles. Specifically, we will explore the use of both homogeneous and heterogeneous Schiff–base complexes as catalysts in these processes. Reviewing the progress made in this area will help clarify the potential uses and implications of these catalysts in synthesizing nitrogen‐containing heterocycles.