Tetranuclear Palladium Complexes of Abnormal N ‐Heterocyclic Carbene Ligands and their Catalytic Activities in Mizoroki‐Heck Coupling Reaction of Electron‐Rich Aryl Chlorides

2019 ◽  
Vol 361 (20) ◽  
pp. 4714-4726 ◽  
Author(s):  
Jhen‐Yi Lee ◽  
Yong‐Siang Su ◽  
Yu‐Shan Wang ◽  
Hon Man Lee
Keyword(s):  
Coupling Reaction ◽  
Palladium Complexes ◽  
Heck Coupling ◽  
Carbene Ligands ◽  
Aryl Chlorides ◽  
Catalytic Activities

Synthesis and Characterization of Novel PEPPSI type Pd–BICAAC Complexes

2022 ◽  
Author(s):  
Márton Nagyházi ◽  
Balázs Almási ◽  
Ádám Lukács ◽  
Attila Bényei ◽  
Tibor Nagy ◽  
...  
Keyword(s):  
High Activity ◽  
Coupling Reaction ◽  
Kinetic Studies ◽  
Elemental Mercury ◽  
Palladium Complexes ◽  
Synthesis And Characterization ◽  
Heck Coupling ◽  
Moisture Resistant

A series of bicyclic alkylamino carbenes (BICAAC) (where N-aryl = dipp, mes, 2,6-dimethyl-4-(dimethylamino)phenyl, 5a-d) and their novel air- and moisture-resistant pyridine (pyridine, 4 dimethylaminopyridine) containing palladium PEPPSI-type Pd(II) complexes (6a-e) were synthetized and characterized. The new palladium complexes have shown high activity in Mizoroki–Heck coupling reaction even at as low as 100 ppm loading (TON up to 10000). Kinetic studies revealed that reactions carried out in the presence of elemental mercury resulted in decrease in activity. It indicates that the coupling reaction may have both molecular and Pd(0)-mediated catalytic paths.

Photoelectric properties for aromatic triangular tri-palladium complexes and their catalytic applications in Suzuki-Miyaura coupling reaction

2021 ◽  
Author(s):  
Xujun Li ◽  
Jia Li ◽  
Xiaoshuang Wang ◽  
lingang Wu ◽  
Yanlan Wang ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Palladium Complexes ◽  
Cyclic Voltammogram ◽  
Catalytic Activities ◽  
Photoelectric Properties ◽  
Catalytic Applications

The photoelectric properties and catalytic activities of substituted triphenylphosphine and sulfur/selenium ligands supported aromatic triangular tri-palladium complexes 1-4, abbreviated as [Pd3]+, were investigated. The cyclic voltammogram of [Pd3]+ in CH3CN-nBu4NPF6...

scholarly journals Palladium-Catalyzed Heck Coupling Reaction of Aryl Bromides in Aqueous Media Using Tetrahydropyrimidinium Salts as Carbene Ligands

Molecules ◽  
2010 ◽  
Vol 15 (2) ◽  
pp. 649-659 ◽  
Author(s):  
Sedat Yaşar ◽  
Emine Özge Özcan ◽  
Nevin Gürbüz ◽  
Bekir Çetinkaya ◽  
İsmail Özdemir
Keyword(s):  
Aqueous Media ◽  
Coupling Reaction ◽  
Heck Coupling ◽  
Carbene Ligands ◽  
Aryl Bromides ◽  
Palladium Catalyzed

Monodentate palladium(0)–[60]fullerene complexes of diphosphine ligands as efficient and sustainable nanocatalysts for the Mizoroki–Heck coupling reaction of aryl chlorides

2017 ◽  
Vol 41 (18) ◽  
pp. 9701-9709 ◽  
Author(s):  
Seyyed Javad Sabounchei ◽  
Marjan Hosseinzadeh ◽  
Morteza Zarepour-jevinani ◽  
Bahram Ghanbari
Keyword(s):  
Present Article ◽  
Coupling Reaction ◽  
Diphosphine Ligands ◽  
Heck Coupling ◽  
Catalytic Systems ◽  
Aryl Chlorides ◽  
Fullerene Complexes

The present article combines fullerene chemistry with phosphine-based Pd catalytic systems to report new palladium(0)–[60]fullerenes as heterogeneous nanocatalysts for C–C bond transformations of aryl chlorides.

scholarly journals Poly(pyrazol-1-ylmethyl)benzene Palladium Complexes: Synthesis, Characterisation and Evaluation as Heck Coupling Catalysts

2007 ◽  
Vol 62 (3) ◽  
pp. 323-330 ◽  
Author(s):  
Nthabiseng M. Motsoane ◽  
Ilia A. Guzei ◽  
James Darkwa
Keyword(s):  
Structure Analysis ◽  
Coupling Reaction ◽  
Palladium Complexes ◽  
Heck Coupling ◽  
X Ray

The poly(pyrazol-1-ylmethyl)benzenes L1 - L5 react with [PdCl2(NCMe)2] or [PdClMe(COD)] to form dinuclear palladium complexes [{PdClX(3,5-Me2pzCH2)2-1,2-C6H4}2] (X = Cl (1), Me (2)), [{PdCl2(3,5-Me2pzCH2)2-1,3-C6H4}2] (3), palladium complexes [{Pd2(μ-Cl)2Me2(3,5- Me2pzCH2)2-1,3-C6H4}] (4), [{Pd2(μ-Cl)2X2(3,5-Me2pzCH2)2-1,4-C6H4}] (X = Cl (5), Me (6)), [{Pd2(μ-Cl)2Cl2(3,5-tBu2pzCH2)2-1,4-C6H4}] (7), and tetranuclear [{Pd2(μ-Cl)2Cl2(3,5- Me2pzCH2)2}2-1,4-C6H4] (8). The structures of 1, 2 and 8 were confirmed by X-ray structure analysis. The complexes efficiently catalyse the coupling reaction of iodobenzene and butylacrylate at 80 °C.

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