Synthesis of a new bidentate ferrocenyl N-heterocyclic carbene ligand precursor and the palladium (II) complex trans-[PdCl2(C over cap fc over cap C)], where (C over cap fc over cap C)=1,1 '-di-tert-butyl-3,3 ' (1,1 '-dimethyleneferrocenyl)-diimidazo

摘要

A new ferrocenyl-N-heterocyclic carbene ligand precursor 1,1'-bis[(1-tert-butylimidazolium)-3-methyl]ferrocene dichloride has been synthesised and structurally characterised. The imidazolium salt was readily deprotonated in situ with KN(SiMe3)(2) and reacted with [PdCl2 (cod)] to afford the structurally characterised palladium (II) complex trans-[PdCl2(C<^>fc<^>C)], where (cod) = 1,5-cyclooctadiene and (C<^>fc<^>C) = 1,1'-di-tert-butyl-3,3'-(1,1'-dimethyleneferrocenyl)-diimidazol-2-ylidene. (C) 2004 Elsevier B.V. All rights reserved.