Synthesis and characterization of Ru(H)_2(CO)(TPPMS)_3 and catalytic properties in the aqueous-biphasic hydroformylation of olefins

摘要

The water-soluble complex Ru(H)_2(CO)(TPPMS)_3 where TPPMS:(C_6H_5)_2P(m-C-6H_4SO_3Na)was obtained by phosphine ligand exchange from the corresponding PPh_3 derivative in a water-toluene mixture and characterized by FTIR,UV-Vis,and ~1H NMR and ~31P{~1 H} spectroscopy.The complex was used as a catalyst precursor for the aqueous-biphasic catalytic hydroformylation of several alkenes and alkene mixtures under moderate reaction conditions.The activity trend observed was:1-hexene>cyclohexene > 2,3-dimethyl-l-butene and the catalyst was shown to be resistant to possible sulphur poisons.