13041-79-7Relevant articles and documents
A soluble fluorous palladium complex that promotes heck reactions and can be recovered and reused
Curran, Dennis P.,Fischer, Karin,Moura-Letts, Gustavo
, p. 1379 - 1382 (2004)
A new fluorous SCS pincer palladium complex is synthesized and shown to efficiently promote typical Heck reactions under microwave or thermal heating. The complex is air stable and can be recovered after reactions for reuse by fluorous solid phase extraction. By analogy to related complexes, it may function as a precursor of soluble ligandless palladium metal.
Combination of palladium and oleic acid coated-magnetite particles: Characterization and using in Heck coupling reaction with magnetic recyclability
Rafiee, Ezzat,Ataei, Ali,Nadri, Shirin,Joshaghani, Mohammad,Eavani, Sara
, p. 302 - 309 (2014)
The magnetic Fe3O4 nanoparticles were prepared by co-precipitation method and coated with oleic acid. The oleic acid coated Fe3O4 (Fe@OA) particles were used for the immobilization of palladium particles to prod
Acetylferrocenyloxime palladacycle-catalyzed Heck reactions
Iyer, Suresh,Jayanthi, A
, p. 7877 - 7878 (2001)
Acetylferrocenyloxime palladacycle catalyzed the Heck reaction of aryl bromides and activated aryl chlorides.
Synthesis and characterization of Pd(II) complexes bearing NS, CS, SNS and SCS ligands. Evaluation of their microwave assisted catalytic activity in C–C coupling reactions
Aguilar-Castillo, Bethsy A.,Gabriel Flores-Rojas, G.,González-Sebastián, Lucero,Hernández-Ortega, Simón,Morales-Morales, David,Reyes-Martínez, Reyna
, (2020)
A series of coordination (Pd-NS, Pd-SNS, Pd-SNS-O) and organometallic (Pd-C and Pd-SCS) Pd(II) complexes supported by bidentate and tridentate ligands featuring sulphur moieties have been prepared. All ligands and their palladium complexes were fully char
Pd supported on clicked cellulose-modified magnetite-graphene oxide nanocomposite for C-C coupling reactions in deep eutectic solvent
Karimi, Sabah,Masteri-Farahani, Majid,Niakan, Mahsa,Shekaari, Hemayat
, (2020/10/02)
Cellulose-modified magnetite-graphene oxide nanocomposite was prepared via click reaction and utilized for immobilization of palladium (Pd) nanoparticles without using additional reducing agent. The abundant OH groups of cellulose provided the uniform dispersion and high stability of Pd nanoparticles, while magnetite-graphene oxide as a supporting material offered high specific surface area and easy magnetic separation. The as-prepared nanocomposite served as a heterogeneous catalyst for the Heck and Sonogashira coupling reactions in various hydrophilic and hydrophobic deep eutectic solvents (DESs) as sustainable and environmentally benign reaction media. Among the fifteen DESs evaluated for coupling reactions, the hydrophilic DES composed of dimethyl ammonium chloride and glycerol exhibited the best results. Due to the low miscibility of catalyst and DES in organic solvents, the separated aqueous phase containing both of the catalyst and DES can be readily recovered by evaporating water and retrieved eight times with negligible loss of catalytic performance.
Introduction of a Recyclable Basic Ionic Solvent with Bis-(NHC) Ligand Property and The Possibility of Immobilization on Magnetite for Ligand- and Base-Free Pd-Catalyzed Heck, Suzuki and Sonogashira Cross-Coupling Reactions in Water
Min, Qingwang,Miao, Penghua,Chu, Deyu,Liu, Jinghan,Qi, Meijuan,Kazemnejadi, Milad
, p. 3030 - 3047 (2021/02/16)
A new versatile and recyclable NHC ligand precursor has been developed with ligand, base, and solvent functionalities for the efficient Pd-catalyzed Heck, Suzuki and Sonogashira cross-coupling reactions under mild conditions. Furthermore, NHC ligand precursor was immobilized on magnetite and its catalytic activity was also evaluated towards the coupling reactions as a heterogeneous catalyst. The NHC ligand precursor was prepared with imidazolium functionalization of TCT followed by a simple ion exchange by hydroxide ions. However, the results revealed an excellent catalytic activity for the both homogeneous and heterogeneous catalytic systems. 1.52?g.cm?3 and 1194 cP was obtained for the density and viscosity of the NHC ligand precursor respectively. On the other hand, the heterogeneous type could be readily recovered from the reaction mixture and reused for several times while preserving its properties. Heterogeneous nature of the magnetic catalyst was studied by hot filtration, mercury poisoning, and three-phase tests. High to excellent yields were obtained for all entries for the both homogeneous and heterogeneous catalysts, which reflects the high consistency of the catalyst. Graphic Abstract: [Figure not available: see fulltext.]
