One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 128143-89-5, Name is 4′-Chloro-2,2′:6′,2”-terpyridine, formurla is C15H10ClN3. In a document, author is Etemadi-Davan, Elham, introducing its new discovery. Recommanded Product: 4′-Chloro-2,2′:6′,2”-terpyridine.
Palladium nanoparticles on amino-modified silica-catalyzed C-C bond formation with carbonyl insertion
A practical and heterogeneously catalyzed Stille, homo-coupling, and Suzuki carbonylation reaction has been reported using Pd nanoparticles supported on amino-vinyl silica-functionalized magnetic carbon nanotube (CNT@Fe3O4@SiO2-Pd) for the efficient synthesis of symmetrical and unsymmetrical diaryl ketones from aryl iodides. A wide variety of symmetrical and unsymmetrical diaryl ketones were obtained in high yields under CO gas-free conditions using Mo(CO)(6) as an efficient carbonyl source. Considering the atom economy of Ph3SnCl, less than an equimolar amount can be applied in Stille transformation, which is of great importance due to the toxicity of organotin derivatives. Moreover, no phosphine ligand and external reducing agent were necessary in these coupling carbonylation reactions. This heterogeneous Pd catalyst offers high activity with very low palladium leaching. Finally, the catalyst can be reused and recycled for six steps without loss in activity, exhibiting good example of sustainable methodology. Graphic abstract
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Reference:
Metal catalyst and ligand design,
,Ligand Template Strategies for Catalyst Encapsulation – NCBI