2,4,6-Tri-tert-butyl-1,3,5-triphosphabenzene as an (eta)6-Ligand in Transition Metal Complexes

The (eta)6-1,3,5-triphosphabenzene transition metal complexes 12a,b, 14, and 16 have been synthesized for the first time by the displacement of (eta)6-arene ligands (toluene, benzene and naphthalene) with 2,4,6-tri-tert-butyl-1,3,5-triphosphabenzene (9). The new complexes have been fully characterized by a combination of elemental analysis, mass spectrometry, and 1H-, 13C- and 31 P-NMR spectroscopy.