Xantphos as cis- and trans-chelating ligand in square-planar platinum(II) complexes. Hydroformylation of styrene with platinum-xantphos-tin(II)chloride system

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Abstract

Platinum(II) complexes of a diphosphine ligand xantphos (4,5-bis (diphenylphosphino)-9,9-dimethyl-xanthene) have been synthesised and characterised by NMR, conductivity and catalytic investigations. In addition to the parent complex cis -PtCl2(xantphos), trans -platinum(II) complexes of square-planar geometry containing xantphos as a trans -chelating ligand can be obtained due to the large bite angle of the ligand. The platinum- xantphos -tin(II)chloride system acts as active hydroformylation catalyst in the hydroformylation of styrene resulting in high chemo- and regio-selectivities of up to 99.8% and 88%, respectively.

Original languageEnglish
Pages (from-to)1188-1193
Number of pages6
JournalJournal of Organometallic Chemistry
Volume689
Issue number7
DOIs
Publication statusPublished - Apr 1 2004

Keywords

  • Hydroformylation
  • Phosphine
  • Platinum
  • Trigonal bipyramidal geometry

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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