N, N’-bidentate ligand anchored palladium catalysts on MOFs for efficient Heck reaction

Xiao-Li Xu, Nian-Nian Wang, Yong-Hao Zou, Xiao Qin, Peng Wang, Xiang-Yu Lu, Xiao-Yu Zhang, Wei-Yin Sun and Yi Lu ()
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Xiao-Li Xu: Nanjing University
Nian-Nian Wang: Nanjing University
Yong-Hao Zou: Nanjing University
Xiao Qin: Nanjing University
Peng Wang: Nanjing University
Xiang-Yu Lu: Nanjing University
Xiao-Yu Zhang: Nanjing University
Wei-Yin Sun: Nanjing University
Yi Lu: Nanjing University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Metal-organic frameworks (MOFs), recognized as advanced catalyst carriers due to their adjustable porous, diverse structure and highly exposed active sites, have earned increasing attention for their potential to address the longevity of catalytic centers. In this manuscript, we have devised and synthesized a multifunctional amino-pyridine benzoic acid (APBA) ligand to replace the modulator ligand of the MOF-808 and disperse the palladium catalytic centers atomically on the MOF-APBA. The resulting single-site catalytic system, Pd@MOF-APBA, demonstrates preeminent efficiency and stability, as evidenced by a high average turnover number (95000) and a low metal residue (4.8 ppm) in the Heck reaction. This catalyst has exhibited recyclability for multiple runs without significant loss of reactivity for gram-scale reactions. The catalyst’s high activity and efficiency can be attributed to the suitable electrical properties and structures of the N, N’-bidentate ligand for the catalytic palladium ions, postponing their deactivations, including leaching and agglomeration.

Date: 2024
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DOI: 10.1038/s41467-024-51552-x

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