12131-44-1, Name is Bis[cinnamyl palladium(II) chloride], belongs to catalyst-palladium compound, is a common compound. Safety of Bis[cinnamyl palladium(II) chloride]In an article, once mentioned the new application about 12131-44-1.
Dinuclear (pi-allyl)palladium chlorides, [(pi-allyl)Pd(mu-Cl)] 2, were cleaved by N-heterocyclic carbenes (NHCs) to give mononuclear (pi-allyl)palladium-NHC chlorides, [(pi-allyl)Pd(Cl)(NHC)] (1-6) [NHC = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPR), 1,3-bis(2,6- diisopropylphenyl)-4,5-dihydroimidazol-2-ylidine (SIPR), 1,3-bis(2,4,6- trimethylphenyl)imidazol-2-ylidene (IMes)]. Complexes 1-6 were subsequently treated with aqueous NaN3, KSCN, KOCN, and CF3COOAg to produce the corresponding mononuclear (pi-allyl)palladium-NHC pseudohalogen complexes, [(pi-allyl)Pd(X)(NHC)] (X = N3, NCS, SCN, NCO, CF 3COO) (7-30). These products could also be obtained by treating dinuclear pseudohalogen-bridged Pd complexes, [(pi-allyl)Pd(mu-X)] 2, which were prepared by replacing the mu-Cl ligand in [(pi-allyl)Pd(mu-Cl)]2, with aqueous NaN3, KSCN, KOCN, or CF3COOAg, followed by cleavage with the NHCs. Reactions of [(pi-allyl)Pd(N3)(NHC)] with organic isothiocyanates (R-NCS) or CH3O(CO)C?CO(CO)CH3 resulted in selective 1,3-dipolar cycloaddition into the Pd-azido bond to give heterocyclic compounds. By contrast, analogous reactions of [(eta3-allyl)Pd(N 3)(IPr)] with an organic isocyanide (R-NC: R = tert-butyl, benzyl) gave the adduct [(eta3-allyl)Pd(N3)(IPr)]·(R-NC) as the only product or a mixture of the adduct and a dipolar cycloaddition product, [(eta3-allyl)Pd{CN4(R)}(IPr)], depending on the isocyanides used. Finally, a series of (pi-allyl)Pd-NHC pseudohalogen complexes, [(pi-allyl)Pd(X)(NHC)], exhibited high catalytic activity in Suzuki-Miyaura cross-coupling reactions of aryl chlorides with arylboronic acids. A series of (pi-allyl)palladium complexes containing N-heterocyclic carbene and pseudohalogen ligands are prepared and their reactivity toward organic isothiocyanates and isocyanides is studied. Suzuki-Miyaura cross-coupling reactions of aryl chlorides with aryl boronic acid catalyzed by these (pi-allyl)palladium complexes are reported. Copyright
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method