Bis(phosphine) derivatives of diamines

Mireia R i Zubiri, Heather L Milton, David John Cole-Hamilton, Alexandra Martha Zoya Slawin, John Derek Woollins

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

The synthesis, oxidation and coordination chemistry of new bis(aminophosphines) based on diamines is demonstrated. Ph2PN(CH2Ph)CH2CH2(CH2Ph)NPPh2, (Pr2PN)-Pr-i(CH2Ph)CH2CH2(CH2Ph)(NPPr2)-Pr-i, Ph2PNH(C10H6)(2)NHPPh2, Ph2PNH(C10H6) (C6H4)NHPPh2 were prepared and tested in the hydroformylation of hex-1-to give aldehydes with poor selectivity (up to 1:b=2.5:1) to the desired linear products. Modelling calculations were performed for all ligands. R-2 groups enlarge the natural bite angle when going from R-2 = Ph-2 to R-2 = Pr-i(2) which are more bulky. Most of the ligands seem to be rigid (with flexibility ranges of 25degrees-46degrees). Four demonstrative X-ray structures are reported. (C) 2003 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)693-399
Number of pages7
JournalPolyhedron
Volume23
Issue number4
DOIs
Publication statusPublished - 12 Feb 2004

Keywords

  • ligand
  • catalysis
  • X-ray structure
  • complex
  • RHODIUM-CATALYZED HYDROFORMYLATION
  • COORDINATION CHEMISTRY
  • MOLECULAR-STRUCTURE
  • PLATINUM COMPLEXES
  • LIGANDS
  • PHOSPHINE
  • DIPHOSPHINES
  • BULKY
  • MECHANISM
  • OCT-1-ENE

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