Charge-tagged ligands derived of 1,3-imidazolium ion as catalyst precursor of copper, nickel and palladium

ESI-MS is a soft ionizing technique, which may allow an online monitoring of a plethora of reactions. Valuable information such as coordination, oxidation states of metal center and others may be obtained by ESI-MS. Based on that, we synthesized a charge-tagged ligand as a precursor to an in situ formation of a charge-tagged catalyst palladium, cooper and nickel. Herein, we describe the gas phase chemistry of the palladium-derivatives.