[Pd{CH2C(O)Me}Cl]n, a Key Product for the Synthesis of Acetonylpalladium(II) Complexes

[Hg{CH 2 C(O)Me} 2 ] reacts with [PdCl 2 (MeCN) 2 ] (1:1) or with (Me 4 N) 2 [Pd 2 Cl 6 ] (2:1) to give [Pd{CH 2 C(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{CH 2 C(O)Me}I] n, [Pd{CH 2 C(O)Me}ClL 2 ] [L 2 = N, N, N ‘ N ‘-tetramethylethylenediamine, 2,2‘-bipyridine, 4,4‘-( t Bu) 2 -2,2‘-bipyridine, 1,10-phenathroline; L = PPh 3, dimethyl sulfoxide (dmso)], [Pd 2 {CH 2 C(O)Me}{μ-κ 2 -C,O−CH 2 C(O)Me}(μ-Cl)Cl(dmso) 2 ], or [Pd 2 {CH 2 C(O)Me} 2 (μ-Cl) 2 (tetrahydrothiophene) 2 ] can be obtained. The crystal structures of the last two complexes and that of [Hg{CH 2 C(O)Me} 2 ] have been determined by X-ray crystallography.