353798-13-7Relevant academic research and scientific papers
Synthesis of Arylpalladium(II) Complexes Derived from Benzyl Alcohol, Reactivity toward Alkyl Halides, and Synthesis of Dinuclear Arylpalladium(II) Complexes
Fernández-Rodríguez, María-José,Martínez-Viviente, Eloísa,Vicente, José,Jones, Peter G.
, p. 3282 - 3291 (2015)
The aryl palladium complexes [PdI(C6H4CH2OH-2)(N^N)] (N^N = bpy = 2,2′-bipyridyl (1a), tbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine (1b), tmeda = N,N,N′,N′-tetramethylethylenediamine (1c)) were synthesized by oxidative addition of 2-iodobenzyl alcohol to one equivalent of "[Pd(dba)2]" (dba = dibenzylideneacetone) in the presence of the N N ligands. By reaction of 1a with three equivalents of XyNC (Xy = 2,6-dimethylphenyl) the insertion complex trans-[PdI{C(-NXy)(C6H4CH2OH-2)}(CNXy)2] (2) was formed. The reaction of 1a with KOtBu resulted in the formation of the chelate complex [Pd(κ2-C,O-C6H4CH2O-2)(bpy)] (3), which crystallizes as pairs of molecules bridged by hydrogen bonds to water of crystallization. Complex 3 reacts with XyNC, forming the cyclic imidate N-(2,6-dimethylphenyl)-2-benzofuran-1(3H)-imine (4). By reaction of 3 with various primary alkyl halides RCH2X, the complexes [PdX(C6H4CH2OCH2R-2)(bpy)] (X = I, R = H (5a), X = Br, R = Ph (5b), p-C6H4CH2Br (5c), p-C6H4Br (5d), and p-C6H4I (5e)) were obtained. When the reaction of 3 with p-C6H4(CH2Br)2 was carried out in a 2:1 ratio, the dinuclear arylpalladium complex [{(bpy)BrPd(C6H4CH2OCH2-2)}2(C6H4-1,4)] (6) formed. An halide exchange reaction on 5e, using AgOTf and an excess of NaI, afforded [PdI{C6H4(CH2OCH2(C6H4I-4))-2}(bpy)] (5f), which by oxidative addition to [Pd(dba)2] in the presence of bpy formed another dinuclear arylpalladium complex, [(bpy)IPd(C6H4CH2-2)O(CH2C6H4-4)PdI(bpy)] (7). All the complexes have been extensively characterized by NMR spectroscopy. The crystal structures of 1a, 3·H2O, and 5e were determined by X-ray diffraction studies.
Synthesis and structure of new oxapalladacycles with a Pd-O bond
Fernández-Rivas, Carolina,Cárdenas, Diego J.,Martín-Matute, Belén,Monge, ángeles,Gutiérrez-Puebla, Enrique,Echavarren, Antonio M.
, p. 2998 - 3006 (2008/10/08)
Reaction of the arylpalladium complex [Pd(2-C6H4CH2OSi-t-BuMe2) (PPh3)2I] (9) with n-Bu4NF gave the oxapalladacycle dimer [Pd(2-C6H4CH2O)I(PPhsu
