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Wang M, He Z, Chen M, Fu F, Wang Y. Heterogenization of Palladium Trimer and Nanoparticles Through Polymerization Boosted Catalytic Efficiencies in Recyclable Coupling and Reduction Reactions. Chemistry 2024; 30:e202403447. [PMID: 39401948 DOI: 10.1002/chem.202403447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2024] [Accepted: 10/14/2024] [Indexed: 11/15/2024]
Abstract
The development of heterogeneous palladium catalysts has shown continuous vitality in the field of catalysis and materials. In this work, we report one concise free radical polymerization approach to accomplish the aromatic palladium trimer functionalized polymers PSSy-[Pd3]+ (2) and its derived palladium nanoparticles (3). Full characterizations could confirm the successful combination of cationic [Pd3]+ or nanoparticles with poly(p-sulfonated styrene) skeleton. Compared to their monomeric tri-palladium precursor (1) and common Pd(dba)2, Pd(PPh3)4, Pd(OAc)2, heterogeneous PSSy-[Pd3]+ (2) shows much superior catalytic activities (0.15 mol %, TOF=1333.3 h-1) in the SMCC reaction. The identically ligated PdNPs (3) are formed in-suit in the presence of NaBH4 and accomplish quantitative reduction of 4-nitrophenol in just 320 s (0.50 mol %, TOF=2250 h-1). Moreover, these heterogeneous catalysts are reused for 5-6 times without significant loss of catalytic activity. Their superior catalytic ability is probably attributed to the synergistic effect of polymer entanglement and the tri-palladium fragment. This work enlightens that the immobilization of palladium clusters or nanoparticles by polymerization could offer multiple advantages in stability, efficiency and recyclability for their involved catalyses and show far-reaching future implications.
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Affiliation(s)
- Miaomiao Wang
- Department of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, 252059, Liaocheng (China)., China
| | - Zhixin He
- Department of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, 252059, Liaocheng (China)., China
| | - Meng Chen
- Department of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, 252059, Liaocheng (China)., China
| | - Fangyu Fu
- School of Sciences, Great Bay University, Great Bay Institute for Advanced Study, Dongguan, 523000, China
| | - Yanlan Wang
- Department of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, 252059, Liaocheng (China)., China
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Membrat R, Kondo TE, Agostini A, Vasseur A, Nava P, Giordano L, Martinez A, Nuel D, Humbel S. The Adaptative Modulation of the Phosphinito-Phosphinous Acid Ligand: Computational Illustration Through Palladium-Catalyzed Alcohol Oxidation. Molecules 2024; 29:4999. [PMID: 39519640 PMCID: PMC11547856 DOI: 10.3390/molecules29214999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2024] [Revised: 10/07/2024] [Accepted: 10/14/2024] [Indexed: 11/16/2024] Open
Abstract
The phosphinito-phosphinous acid ligand (PAP) is a singular bidentate-like self-assembled ligand exhibiting dissymmetric but interchangeable electronic properties. This unusual structure has been used for the generation of active palladium hydride through alcohol oxidation. In this paper, we report the first theoretical highlight of the adaptative modulation ability of this ligand within a direct H-abstraction path for Pd and Pt catalyzed alcohol oxidation. A reaction forces study revealed rearrangements in the ligand self-assembling system triggered by a simple proton shift to promote the metal hydride generation via concerted six-center mechanism. We unveil here the peculiar behavior of the phosphinito-phosphinous acid ligand in this catalysis.
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Affiliation(s)
- Romain Membrat
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Tété Etonam Kondo
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Alexis Agostini
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Alexandre Vasseur
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
| | - Paola Nava
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Laurent Giordano
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Alexandre Martinez
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Didier Nuel
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
| | - Stéphane Humbel
- Aix Marseille Univ, CNRS, Centrale Med, ISM2, Marseille, France; (R.M.); (A.V.); (P.N.); (L.G.); (A.M.)
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Marinus N, Reintjens NRM, Haldimann K, Mouthaan MLMC, Hobbie SN, Witte MD, Minnaard AJ. Site-Selective Palladium-catalyzed Oxidation of Unprotected Aminoglycosides and Sugar Phosphates. Chemistry 2024; 30:e202400017. [PMID: 38284753 DOI: 10.1002/chem.202400017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 01/30/2024]
Abstract
The site-selective modification of complex biomolecules by transition metal-catalysis is highly warranted, but often thwarted by the presence of Lewis basic functional groups. This study demonstrates that protonation of amines and phosphates in carbohydrates circumvents catalyst inhibition in palladium-catalyzed site-selective oxidation. Both aminoglycosides and sugar phosphates, compound classes that up till now largely escaped direct modification, are oxidized with good efficiency. Site-selective oxidation of kanamycin and amikacin was used to prepare a set of 3'-modified aminoglycoside derivatives of which two showed promising activity against antibiotic-resistant E. coli strains.
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Affiliation(s)
- Nittert Marinus
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Niels R M Reintjens
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Klara Haldimann
- Institute of Medical Microbiology, University of Zürich, Gloriastrasse 28/30, Zürich, Switzerland
| | - Marc L M C Mouthaan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Sven N Hobbie
- Institute of Medical Microbiology, University of Zürich, Gloriastrasse 28/30, Zürich, Switzerland
| | - Martin D Witte
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
| | - Adriaan J Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The, Netherlands
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