No abstract

Water-soluble mononuclear ruthenium complexes containing monodentate P-donor ligands [1,3,5-triaza-7-phosphaadamantane (PTA) and P(OMe) 3 ], together with a mononuclear bidentate salicylaldimine ruthenium-arene complex, were synthesized from a water-soluble dimeric ruthenium(II)-arene precursor. These complexes were used as catalyst precursors in the aqueous biphasic hydroformylation of 1-octene. Hydroformylation reactions with these Ru-arene complexes showed that the complexes are active hydroformylation catalyst precursors in water. The catalyst precursors convert 1-