[Pd{CH₂C(O)Me}Cl]<i>_n</i>, a Key Product for the Synthesis of Acetonylpalladium(II) Complexes

Abstract

[Hg{CH2C(O)Me}2] reacts with [PdCl2(MeCN)2] (1:1) or with (Me4N)2[Pd2Cl6] (2:1) to give [Pd{CH2C(O)Me}Cl]n, which can be used to prepare a variety of acetonyl complexes. Thus, by reacting it with the appropriate ligands, complexes [Pd{CH2C(O)Me}I]n, [Pd{CH2C(O)Me}ClL2] [L2 = N,N,N‘N‘-tetramethylethylenediamine, 2,2‘-bipyridine, 4,4‘-(tBu)2-2,2‘-bipyridine, 1,10-phenathroline; L = PPh3, dimethyl sulfoxide (dmso)], [Pd2{CH2C(O)Me}{μ-κ2-C,O−CH2C(O)Me}(μ-Cl)Cl(dmso)2], or [Pd2{CH2C(O)Me}2(μ-Cl)2(tetrahydrothiophene)2] can be obtained. The crystal structures of the last two complexes and that of [Hg{CH2C(O)Me}2] have been determined by X-ray crystallography.