"A New Tripodal Ligand System Based on the Iminophosphorane Functional Group. Part 1: Synthesis and Characterization"

Laurence Beaufort, Lionel Delaude, and Alfred F. Noels

journal cover 
          source: Tetrahedron
            year: 2007
          volume: 63
      first page: 7003
       last page: 7008
             doi: 10.1016/j.tet.2007.05.022
graphical abstract

Abstract: Two tripodal alcohols, viz., 1,1,1-tris(hydroxymethyl)ethane and α,α,α-tris(hydroxymethyl)toluene were converted by an efficient multi-step pathway involving azide formation into the corresponding tris(iminophosphorane) scaffolds bearing cyclopentyl (Cp) or phenyl groups on their phosphorus atoms, R-C(CH2-N=PR'3)3 (R = Me or Ph, R' = Cp or Ph). The synthesis of some representative transition-metal complexes of Cu(I), Cu(II), Ni(II), and Pd(II) bearing these new tridentate ligands is also reported.

Keywords: Azide, Cu Complexes, Ni Complexes, Pd Complexes, Staudinger Reaction

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