Synthesis of Imidazolium-Tethered Ruthenium(II)-Arene Complexes and Their Application in Biphasic Catalysis

作者: Tilmann J. Geldbach , Gábor Laurenczy , Rosario Scopelliti , Paul J. Dyson

DOI: 10.1021/OM050849U

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摘要: Reaction of RuCl3 with 1-[2-(1,4-cyclohexadiene-1-yl)alkyl]-3-methylimidazolium chloride (alkyl = Et, butyl) and 1-[2-(1,4-cyclohexadiene-1-yl)ethyl]-2,3-dimethylimidazolium affords a series dimeric ruthenium complexes the type [RuCl2(η6-arene)]2Cl2. Treatment these salts phosphine ligands leads to highly water-sol. monomeric [RuCl2PR3(η6-arene)]Cl (PR3 PPh3, PCy3). [RuCl2(η6-1-(2-benzylethyl)-3-butylimidazolium)]Cl Ag2O gives rise η6-arene-carbene chelate complex. The have been tested as catalysts in hydrogenation styrene immobilized water or an ionic liq. aq. redn. CO2/CO32-. A carbonate-hydride complex has identified intermediate by high-pressure NMR measurements. solid-state structures several new imidazolium-functionalized arene including arene-carbene are reported.

参考文章(31)
Kamaluddin Abdur-Rashid, Terry Fedorkiw, Alan J. Lough, Robert H. Morris, Coordinatively Unsaturated Hydridoruthenium(II) Complexes of N-Heterocyclic Carbenes Organometallics. ,vol. 23, pp. 86- 94 ,(2004) , 10.1021/OM034178G
Henrietta Horváth, Gábor Laurenczy, Ágnes Kathó, Water-soluble (η6-arene)ruthenium(II)-phosphine complexes and their catalytic activity in the hydrogenation of bicarbonate in aqueous solution Journal of Organometallic Chemistry. ,vol. 689, pp. 1036- 1045 ,(2004) , 10.1016/J.JORGANCHEM.2003.11.036
Boy Cornils, Bulk and fine chemicals via aqueous biphasic catalysis Journal of Molecular Catalysis A: Chemical. ,vol. 143, pp. 1- 10 ,(1999) , 10.1016/S1381-1169(98)00357-4
Philip G. Jessop, Takao. Ikariya, Ryoji. Noyori, Homogeneous Hydrogenation of Carbon Dioxide Chemical Reviews. ,vol. 95, pp. 259- 272 ,(1995) , 10.1021/CR00034A001
George W. Parshall, Catalysis in molten salt media Journal of the American Chemical Society. ,vol. 94, pp. 8716- 8719 ,(1972) , 10.1021/JA00780A013
Dongbin Zhao, Zhaofu Fei, Tilmann J. Geldbach, Rosario Scopelliti, Paul J. Dyson, Nitrile-Functionalized Pyridinium Ionic Liquids:  Synthesis, Characterization, and Their Application in Carbon−Carbon Coupling Reactions Journal of the American Chemical Society. ,vol. 126, pp. 15876- 15882 ,(2004) , 10.1021/JA0463482
Richard Baldwin, Martin A. Bennett, David C. R. Hockless, Paolo Pertici, Alessandra Verrazzani, Gloria Uccello Barretta, Fabio Marchetti, Piero Salvadori, Synthesis, structures and dynamic NMR spectra of η6-hexaethylbenzene complexes of ruthenium(0) and ruthenium(II) Journal of The Chemical Society-dalton Transactions. pp. 4488- 4496 ,(2002) , 10.1039/B204875M
David Sémeril, Christian Bruneau, Pierre H. Dixneuf, Ruthenium Catalyst Dichotomy: Selective Catalytic Diene Cycloisomerization or Metathesis Helvetica Chimica Acta. ,vol. 84, pp. 3335- 3341 ,(2001) , 10.1002/1522-2675(20011114)84:11<3335::AID-HLCA3335>3.0.CO;2-4