Synthesis, Characterization, Reactivity of η 3 -allylPd(L)(X), Where X = Cl and L = Imidazolylphosphine and Their Application in Aryl Amination Reactions

Synthesis of new mono-(imidazolylphosphine) palladium chloride complexes is reported. Imidazolyl phosphines reacted with allypalladium chloride dimer to form monophosphine palladium(II) complexes. Some of these complexes readily ionize to form stable square planar complexes in which the heterocyclic nitrogen coordinates to Pd, whereas in other cases, the acidity of the N–H proton was explored. Finally, activity of complexes as catalysts for aryl amination reactions was also investigated.