Palladium/N-Heterocyclic Carbene-Decorated Covalent Organic Framework for Suzuki–Miyaura and Mizoroki–Heck Cross-Coupling

作者：Xiaogang Wang, Jiayu Li, Linqian Wang, Michal Szostak · 发表于：The Journal of Organic Chemistry · 年份：2025 · DOI：10.1021/acs.joc.5c00419 · 被引用次数：10 · 研究领域：Covalent Organic Framework Applications、Catalytic Cross-Coupling Reactions、Perovskite Materials and Applications

Recently, significant breakthroughs have been achieved in covalent organic frameworks (COF) as well-defined porous materials for palladium catalysis. However, the development of modular frameworks decorated with readily available and strongly σ-donating N-heterocyclic ligands is unexplored. In this study, we report a novel modular Pd–NHC/COF framework, where the active palladium species is incorporated into a covalent organic framework (COF) through readily accessible benzimidazolium. The Pd–NHC/COF system promotes the Suzuki–Miyaura and Mizoroki–Heck C–C cross-coupling as a highly active reusable catalyst. Excellent catalytic efficiency and high Z / E selectivity have been achieved for the construction of biaryls and stilbenes using this Pd–NHC/COF catalytic system.