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Updated: May 17, 2025

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Palladium/N-Heterocyclic Carbene-Decorated Covalent Organic Framework for Suzuki-Miyaura and Mizoroki-Heck
Xiaogang Wang1, Jiayu Li1, Linqian Wang1
1Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shaanxi Engineering Research Center for Mineral Resources Clean and Efficient Conversion and New Materials, College of Chemical Engineering and Modern Materials, Shangluo University, Shangluo 726000, China.
Abstract:
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.
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