Extracurricular laboratory:new discovery of 32005-36-0

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One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Recommanded Product: Bis(dibenzylideneacetone)palladium, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 32005-36-0, Name is Bis(dibenzylideneacetone)palladium, molecular formula is C34H28O2Pd

New triolefinic macrocyclic ligands of the type (E,E,E)-1,6,11- tris(arenesulfonyl)-1,6,11-triazacyclopentadeca-3,8,13-triene (aryl: a = ferrocenyl, b = 4-pyrrol-1-ylphenyl, c = 4-methylphenyl) and their Pd 0 complexes (1aab, 1abb and 1bcc) have been prepared and characterized. Further structural characterization in the solid state has also been performed by means of X-ray diffraction analysis for the complex 1bcc. The redox properties of both the ligands and their Pd complexes have been studied using cyclic voltammetric and coulombimetric techniques. In particular, complexes and ligands containing the pyrrole group do polymerize upon exposure to sufficiently positive potentials, on glassy carbon electrodes, generating highly stable modified electrodes. The new modified electrodes are efficient and selective heterogeneous catalysts for Suzuki cross-couplings, benefiting from simple removal of the catalyst from the reaction vessel. As an example, more than 2·105 metal cycles are achieved at 65 C in the coupling of phenylboronic acid and cinnamyl bromide. Iodoarenes and phenylboronic acid are also converted into biphenyls with relatively good conversions. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

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Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method