Convenient Method for the Synthesis of Chloro-Bridged Methyl- and Acetylpalladium(II) Dimers

Folami T. Ladipo, Gordon K. Anderson

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116 Scopus citations

Abstract

A series of chloro-bridged methylpalladium(II) dimers of the type [ Pd2(μ -Cl)2 Me2L2] (la-h; L = PEt3, PMePh2, PPh3, P(CH2Ph)3, P(OMe)3, AsPh3, CNBut, 2,6-lutidine) has been prepared from [PdClMe(cod)] and 1 equiv of the appropriate ligand. Cis and trans isomers may be identified where L = PEt3 or CNBut. Addition of a second equivalent of PEt3 results in a bridge-splitting reaction to give trans-[PdClMe(PEt3)2] (2a), but this process may be reversed by addition of further [PdClMe(cod)]. Carbonylation of [PdClMe(cod)] yields the corresponding acetyl complex, and treatment of the latter with PEt3, AsPh3, or CNBut leads to the acetylpalladium dimers [Pd2(μ-Cl)2(COMe)2L2] (3a,f,g). Reaction of 3a with PEt3 produces trans- [PdCl(COMe) (PEt3)2] (4a), but this may also be reversed by addition of further [PdCl- (COMe)(cod)]. Addition of excess CNBut to [PdClMe(cod)] generates the iminoacyl complex trans- [PdCl{C(═NBut)Me}(CNBut)2] (6g).

Original languageEnglish
Pages (from-to)303-306
Number of pages4
JournalOrganometallics
Volume13
Issue number1
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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