Lithium-aluminate-catalyzed hydrophosphination applications

Victoria A. Pollard, Allan Young, Ross McLellan, Alan R. Kennedy, Tell Tuttle, Robert E. Mulvey

Research output: Contribution to journalArticle

5 Citations (Scopus)
18 Downloads (Pure)

Abstract

Synthesized, isolated, and characterized by X-ray crystallography and NMR spectroscopic studies, lithium phosphidoaluminate iBu3AlPPh2Li(THF)3 has been tested as a catalyst for hydrophosphination of alkynes, alkenes, and carbodiimides. Based on the collective evidence of stoichiometric reactions, NMR monitoring studies, kinetic analysis, and DFT calculations, a mechanism involving deprotonation, alkyne insertion and protonolysis is proposed for the [iBu3AlHLi]2 aluminate-catalyzed hydrophosphination of alkynes with diphenylphosphine. This study enhances further the development of transition metal free, atom economical homogeneous catalysis using common sustainable main group metals.
Original languageEnglish
Pages (from-to)12291-12296
Number of pages6
JournalAngewandte Chemie International Edition
Volume58
Issue number35
Early online date1 Jul 2019
DOIs
Publication statusPublished - 26 Aug 2019

Keywords

  • aluminate
  • homogeneous catalysis
  • hydrophosphination
  • lithium
  • phosphine

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