Synthesis of aminophosphine-based dinuclear Ru(II) complexes and investigation of the catalytic efficiency in transfer hydrogenation reactions

The chemistry of phosporus containing ligands such as aminophosphines, phosphines, phospites, has been intensively investigated in over the past years. These substances are notable as potential ligands, enabling different structural alterations by forming straightforward P-N, P-C, and P-O bonds. The use of aminophosphine ligands in coordination chemistry is also increasing due to their high transition . In high yields, the reaction of phosphine chloride and amine often produces target ligands such as RNHPR2 or RN(PR2)2. The nature of chlorophospine and organic input determines the reaction conditions for aminophospine synthesis. PH2PCI is more reactive to nucleophiles than chloroalkyphosphine due to electronic reasons.This research involved the synthesis of N,N'-(diphenylphosphino)ethylenediamine am ligand by reacting ethylenediamine with Ph2PCl, which is readily available commercially. The ligand's coordination behavior and catalytic characteristics were analyzed through reactions involving [Ru(η6-p-cymene)Cl2]2 and [Ru(η6-benzene)Cl2]2 complexes. The new Ru(II) complexes were characterized through the use of different transition metals to create complex compounds with varying coordination numbers, as well as through spectroscopic techniques like NMR, IR, and elemental analysis. In the last stage, Ru(II) complexes were assessed as catalysts in transfer hydrogenation reactions of ketones.