THE CATALYTIC ACTIVITY OF NEW RUTHENIUM(II) COMPLEXES CONTAINING CHELATING DIPHOSPHINE LIGAND IN THE HOMOGENEOUS HYDROGENATION OF CYCLOHEXENE
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SCOPUS
- Title
- THE CATALYTIC ACTIVITY OF NEW RUTHENIUM(II) COMPLEXES CONTAINING CHELATING DIPHOSPHINE LIGAND IN THE HOMOGENEOUS HYDROGENATION OF CYCLOHEXENE
- Authors
- CHO, YG; HUH, S; JUN, MJ; KIM, KM; WHANG, DM
- Date Issued
- 1994-06
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- A series of new hydridocarbonyl ruthenium(II) complexes containing chelating diphosphine ligands of the type [RuHCl(CO)(PPh3)(L-L)] [L-L = Ph2PCH2PPh, 2, Ph2PCH2CH2PPh2 3, Ph2PCH2CH2CH2PPh2 4, cis-Ph2PCH=CHPPh2 5 and Fe(eta5-C5H4PPh2)2 6] has been prepared by the reactions of [RuHCI(CO)(PPh3)3] 1 with Ph2PCH2PPh2 [dppm, bis(diphenylphosphino)methane], Ph2PCH2CH2PPh2 [dppe, 1,2-bis(diphenylphosphino)ethane], Ph2PCH2CH2CH2PPh2 [dppp, 1,3-bis(diphenylphosphino)propanel, cis-Ph2PCH=CHPPh2 [dppv, cis-1,2-bis(diphenylphosphino)ethylene] and Fe(eta5-C5H4PPh2)2 [(dppf, 1, l'-bis(diphenylphosphino)ferrocene] in boiling PhMe. The compounds 2-6 are moderately stable in solution. The new compounds were characterized by elemental analysis, IR and H-1 NMR spectroscopy. Compounds 1-6 have been shown to catalyse the homogeneous hydrogenation of the C=C bond of cyclohexene; some relations between structures and catalytic activities are described. The Arrhenius activation energy of cyclohexene for compound 4 is 33.0 kJ mol-1.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21936
- DOI
- 10.1016/0277-5387(94)80012-X
- ISSN
- 0277-5387
- Article Type
- Article
- Citation
- POLYHEDRON, vol. 13, no. 12, page. 1887 - 1894, 1994-06
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