Preparation of novel complexes bearing diphosphine (dppm) derived from thiosemicarbazone palladacycles

The synthesis of palladium cyclometallated compounds with thiosemicarbazone ligands is described,as well as their reactivity with bidentate phosphine ligands. The synthesis of the ligands is carried out by a condensation reaction between a ketone and a thiosemicarbazide. Subsequently, metallation proceeds, and the resulting product is reacted with the bis(diphenylphosphino)methane (dppm) using the appropriate conditions to obtain the compound with phosphine in a monodentate coordination mode.