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The dual role of cis-[RuCl2(dmso)4] in the synthesis of new water-soluble Ru(II)–phosphane complexes and in the catalysis of redox isomerization of allylic alcohols in aqueous–organic biphasic systems

“…According to the literature, [10] boiling of a toluene suspension of 1 and three equivalents of the water-soluble phosphane, mtppms, for 2 h resulted in formation of the mononuclear [RuCl2(dmso)(mtppms)3]. However, we found this reaction rather slow and incomplete and 31 P NMR indicated the formation of more than one product.…”

“…[8,9] Earlier cis-[RuCl2(dmso)4], 1 was used as precursor for the synthesis of Ru(II)-complexes with aryl, sulfonated aryl, and cyclohexyl phosphanes, both in aqueous and in non-aqueous media. [8,[10][11][12][13][14] In addition, several ligands with N-and O-donor atoms were studied in substitution reactions of both isomers of [RuCl2(dmso)4]. [15] This was -in part-motivated by the expected biological effects of the products.…”

Synthesis and Reactivity of Ru-, Os-, Rh-, and Ir-Halide−Sulfoxide Complexes

“…212,213 The reaction of 8 with 3 equiv of triphenylphosphine monosulfonate (tppms) in refluxing toluene apparently afforded the watersoluble cis-RuCl 2 (dmso-S)(tppms) 3 complex. 214 Taqui Kahn and co-workers reported that treatment of 8 with a number of monodentate arsines and stibines in refluxing ethanol/hydrochloric acid mixtures led to replacement of either two or three dmso ligands, yielding a series of scarcely characterized six-coordinate complexes, formulated as cis,cis,cis-RuCl 2 (dmso-S) 2 (AsPh 3 ) 2 , cis,cis,trans-RuCl 2 (dmso-S) 2 (AsPh 3 ) 2 , and trans-RuCl 2 (dmso-S)(L) 3 (L ) AsMePh 2 , AsMe 2 Ph, SbPh 3 ). 215 toluene yielded the disubstituted complex trans,cis-RuBr 2 (dmso-S) 2 (dppe) (Scheme 19).…”

“…The reaction of 8 with 4 equiv of 3,4-dimethylphosphacymantrene (dmpcym, phosphacymantrene = η 5 -phosphacyclopentadienyl-manganese-tricarbonyl, Chart ) in THF at 40 °C produced cis -RuCl 2 (dmpcym) 4 . Treatment of 8 with methoxydiphenylphosphine (Ph 2 POMe) in refluxing methanol yielded the five-coordinate phosphinite complex RuCl 2 (Ph 2 POMe) 3 , which in the solid state has a triply chloro-bridged dimeric structure, [{Ru(Ph 2 POMe) 3 } 2 (μ-Cl) 3 ]Cl. , The reaction of 8 with 3 equiv of triphenylphosphine monosulfonate (tppms) in refluxing toluene apparently afforded the water-soluble cis -RuCl 2 (dmso-S)(tppms) 3 complex 16 …”

Hydrogenation of Aromatics with [Ru(η5-C5H5)Cl(TPPDS)2] in Biphasic Medium

“…Different ruthenium complexes with water soluble triphenylphosphine sulfonates in biphasic medium, show good hydrogenation activity [7]. Our laboratory has reported catalytic studies with ruthenium complexes in biphasic medium and ionic liquids (IL) in olefin hydrogenation and with other substrates [8][9][10][11][12]. Recently there has been interest in catalytically reducing the aromatic content in liquid fuels [13,14].…”