Synthesis of [2,6-Bis(2-oxazolinyl)phenyl]palladium Complexes via the Ligand Introduction Route

A series of [2,6-bis(2-oxazolinyl)phenyl]palladium (Phebox-Pd) complexes were synthesized via the ligand introduction route. trans-Bromo(2,6-dicarboxyphenyl)bis(triphenylphosphine)palladium was prepared by the reaction of 2-bromoisophthalic acid with Pd(PPh3)4 in 93% yield, and the carboxy groups of the palladium complex were converted into oxazolinyl groups to give the Phebox-Pd complexes in 44−57% yield.