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.
Biaryl Coupling of Aryldiazonium Salts and Arylboronic Acids Catalysed by Gold
Medina-Mercado, Ignacio,Porcel, Susana
, (2022/03/15)
A gold-catalysed coupling of aryldiazonium salts with arylboronic acids is described. The reactions proceed in satisfactory yields under irradiation with blue LEDs in the presence of KF and a catalytic amount of ascorbic acid. Notably, 4-nitrobenzendiazonium tetrafluoroborate is sufficiently reactive to undergo the coupling with a variety of arylboronic acids in the absence of aryl radical initiators. The coupling is applicable for electron-donating and electron-withdrawing groups present at the para, ortho, and meta positions of both substrates.
Catalytic reduction of nitroarenes and Suzuki-Miyaura reactions using Pd complex stabilized on the functionalized polymeric support
Ariannezhad, Maryam,Esperi, Melika,Pourmorteza, Narges,Yousefi, Abed
, (2022/02/17)
The significance of aromatic amines as crude substances in diverse applications has attracted extensive consideration in the field of economic procedures for the reduction of nitroarenes. Also, the formation of Carbon–Carbon bond as a dominant step in the structure of complex molecules is an important phenomenon in chemical reactions. Improvements of eco-friendly methodologies for reduction process and Carbon–Carbon bond formation have been noticeable. The present work represents through a capable heterogeneous Pd catalyst, the reduction of nitroarenes to the corresponding amines in the presence of N2H4 as a weak hydrogen donor reagent in the room temperature and solvent-free condition was progressed. In addition, several C–C bond formations through Suzuki-Miyaura reaction using one-pot mixture containing aryl halide, arylboronic acid in the presence of Pd catalyst at refluxed condition proceeded. Furthermore, the reusability of Pd catalyst for both reduction and Suzuki reactions showed five successive runs without any significant loss in its activity.