Platinum(II) complexes incorporating racemic and optically active 1-alkyl-3-phospholene P-ligands: Synthesis, stereostructure, NMR properties and catalytic activity

Péter Bagi, Tamara Kovács, Tibor Szilvási, Péter Pongrácz, László Kollár, László Drahos, Elemér Fogassy, György Keglevich

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Three 1-alkyl-3-phospholene 1-oxides, such as the P-ethyl, P-isobutyl and P-isopentyl derivative were prepared in racemic and enantiopure forms. After deoxygenation, the cyclic phosphines were converted to the corresponding phosphineeboranes and phosphineeplatinum complexes (PtCl2L 2, where L = 1-alkyl- 3-phospholene). The new products were characterized by spectral methods, and the stereostructure of the complexes was also evaluated by high level quantum chemical calculations. The platinum complexes were tested in the hydroformylation of the styrene. The extent of the regioselectivity towards branched aldehyde exceeds that measured with earlier platinum complexes. However, the enantioselectivity remained below 29%.

Original languageEnglish
Pages (from-to)306-313
Number of pages8
JournalJournal of Organometallic Chemistry
Volume751
DOIs
Publication statusPublished - Feb 1 2014

Keywords

  • 3-phospholene oxide
  • Borane and platinum complexes
  • Hydroformylation
  • Optical resolution
  • P-ligand
  • Theoretical calculations

ASJC Scopus subject areas

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

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