Coordination Chemistry and Catalytic Activity of Ruthenium Complexes of Terdentate Phosphorus−Nitrogen−Phosphorus (PNP) and Bidentate Phosphorus−Nitrogen (PNH) Ligands

Structures of trans-dichlororuthenium(II) complexes of aminodiphosphines RN(CH2CH2PPh2)2 (1a−d, PNP) and aminophosphines RN(H)CH2CH2PPh2 (2a−d, PNH) ligands are
examined. The comparative reactivity of these metal complexes in ruthenium-catalyzed
transfer hydrogenation reactions is subsequently evaluated.

本研究对氨基二膦配体（aminodiphosphines）RN(CH2CH2PPh2)2（1a~d，缩写为PNP）与氨基膦配体（aminophosphines）RN(H)CH2CH2PPh2（2a~d，缩写为PNH）所构筑的反式二氯合钌(II)配合物（trans-dichlororuthenium(II) complexes）的结构进行了考察。随后，本研究评估了这类金属配合物在钌催化转移氢化反应（transfer hydrogenation reactions）中的相对反应活性。