The surprisingly facile formation of Pd(i)-phosphido complexes from ortho-biphenylphosphines and palladium acetate

  • Dalton Trans. 2019 Mar 12;48(11):3539-3542. doi: 10.1039/c8dt04926b.
Michelle Montgomery  1 ,  Harry M O'Brien ,  Carolina Méndez-Gálvez ,  Caitlin R Bromfield ,  Jack P M Roberts ,  Anna M Winnicka ,  Andrew Horner ,  David Elorriaga ,  Hazel A Sparkes ,  Robin B Bedford
Affiliations
  • 1. School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK. [email protected].
PMID: 30720818 DOI: 10.1039/c8dt04926b
Abstract

The widely-used ortho-biphenylphosphine ligands SPhos and RuPhos not only undergo facile orthometallation with palladium acetate, yielding strained, four-membered dimeric palladacycles but more surprisingly, in the presence of alcoholic Solvents, along with the less encumbered analogue MePhos, yield unusual dinuclear Pd(i) complexes, in which the Pd-centers are bridged by both a phosphide ligand and by the arene of a coordinated phosphine donor.

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