Synthesis and reactivity of organolanthanide complexes containing phenothiazine ligand toward carbodiimide and isothiocyanate

Four new organolanthanide phenothiazine complexes were synthesized, and their reactivities toward carbodiimide or isothiocyanate were investigated, indicating that carbodiimide or isothiocyanate readily mono-inserts into the lanthanide-nitrogen bonds to give the corresponding insertion products. All the reactions provide an alternative synthetic strategy for the modification of the phenothiazine ligand.