2143-90-0Relevant articles and documents
Nanostructured Pyrophosphate Na2PdP2O7-Catalyzed Suzuki-Miyaura Cross-Coupling Under Microwave Irradiation
Danoun, Karim,Essamlali, Younes,Amadine, Othmane,Tabit, Rida,Fihri, Aziz,Len, Christophe,Zahouily, Mohamed
, (2018)
Nanostructured palladium pyrophosphate (Na2PdP2O7) catalyst was synthesized and well characterized by using different techniques (TGA, XRD, SEM, TEM..). This nanocatalyst exhibited excellent catalytic activity in the synth
The Suzuki cross-coupling reaction in pure water catalyzed by ligandless palladium using polyethylene glycol derivatives as surfactant
Xiang, Liu,Xiaohua, Zhao,Ming, Lu
, p. 615 - 618 (2013)
The results of a ligandless Pd(OAc)2-catalyzed Suzuki-Miyaura coupling experiment are presented. It was found that the use of polyethylene glycol phosphonium salts (PEG-quat) as surfactant resulted in very rapid reactions of aryl halides with phenylboronic acids in pure water. Moreover, aryl chlorides such as 4-nitrochlorobenezene reacted quantitatively with phenylboronic acid under optimized conditions. Copyright
Direct C-H arylation of (hetero)arenes with aryl iodides via rhodium catalysis
Yanagisawa, Shuichi,Sudo, Tomoko,Noyori, Ryoji,Itami, Kenichiro
, p. 11748 - 11749 (2006)
A new method for the catalytic C-H arylation of heteroarenes and arenes that manifests high activity paired with reasonably broad scope was developed. Under the catalytic influence of RhCl(CO){P[OCH(CF3)2]3}2 an
A highly water-dispersible and magnetically separable palladium catalyst based on functionalized poly(ethylene glycol)-supported iminophosphine for Suzuki-Miyaura coupling in water
Liu, Xiang,Zhao, Xiaohua,Lu, Ming
, p. 419 - 424 (2015)
A magnetically separable Fe3O4@poly(ethylene glycol) (PEG)-iminophosphine palladium complex was successfully prepared by reacting a palladium complex containing the ligand 2-(diphenylphosphino)benzaldehyde with amino-functionalized PEG-coated iron oxide nanoparticles. The novel catalyst was characterized using inductively coupled plasma atomic emission and Fourier transform infrared spectroscopies, transmission electron microscopy, vibrating sample magnetometry, X-ray diffraction and thermogravimetric analysis. It showed high activity for the Suzuki-Miyaura coupling reaction in pure water. Furthermore, it was found that the highly water-dispersible catalyst can be recovered by applying an external magnetic field and used in five consecutive runs without significant decrease in activity.
Suzuki–Miyaura cross-coupling reaction assisted by palladium nanoparticles-decorated zeolite 13X nanocomposite: a greener approach
Deepika, Raja,Sethuraman, Mathur Gopalakrishnan
, p. 1111 - 1128 (2022/01/22)
Heterogeneous catalysts govern the field of catalysis due to their easy separation from a reaction mixture, reusability, and prevention of agglomeration, making them more efficient catalysts than homogeneous catalysts. Herein, we report the eco-friendly synthesis of a novel heterogeneous catalyst, viz. palladium nanoparticles (Pd NPs) decorated over zeolite 13X nanocomposite using dried fruits of Terminalia chebula Retz. as the reducing and stabilizing agent and its performance as a promising catalyst for the Suzuki–Miyaura coupling reactions. The particle size, crystallinity, morphology, and textural properties of the catalyst were identified using Fourier transform-infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HR-TEM), thermal gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and Brunauer–Emmett–Teller (BET) analysis which confirmed the presence of palladium nanoparticles on the surface of zeolite 13X. The FESEM images revealed the presence of spherical-shaped Pd NPs over the cubical particles of zeolite 13X. The average particle size of the palladium nanoparticles was found to be in the range of 6–7?nm and was polycrystalline in nature. From BET analysis, it was inferred that the decoration of Pd NPs decreased the surface area of zeolite 13X (615.5 m2/g to 548.334 m2/g), thus leaving pores unoccupied. This study showed the efficiency of this novel catalyst in the formation of biaryl derivatives using low palladium loadings (0.0012?mol%) giving good to excellent yields (90–99%) within short reaction times (10–225?min) with high TONs (> 79,000) and TOFs (> 21,000). Both electron-donating and electron-withdrawing aryl halides and aryl boronic acids reacted smoothly in the presence of K2CO3 as a base and EtOH/H2O (1:1) as the solvent. Besides, the catalyst could be recycled and reused for 5 consecutive runs with minimal loss of its efficiency. The supremacy of this catalyst could well be exploited in future for various organic transformations. Graphical abstract: [Figure not available: see fulltext.].
'Awaken' aryl sulfonyl fluoride: a new partner in the Suzuki-Miyaura coupling reaction
Ding, Chengrong,Guan, Chenfei,Miao, Huihui,Zhang, Guofu,Zhao, Yiyong
, p. 3560 - 3564 (2022/03/07)
An example of the activation of the -SO2F group, which is traditionally considered a stable group even in the presence of a transition metal, is described using a novel partner in the Suzuki-Miyaura coupling reaction catalyzed by Pd(OAc)2 and Ruphos as ligands. The products showed good to outstanding yields and broad functional group compatibility under optimal conditions. The sequential synthesis of non-symmetric terphenyls and the gram grade process highlight the approach's synthetic utility. DFT calculations have shown that Pd0 prefers to insert between C-S bonds rather than S-F bonds. This journal is
