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The Hydrogenation of Alkene Catalyzed by μ3-S/Se Bridging Heterometallic Cluster and Promoted by Oxygen Transfer Reagent

Q.-S. Li, E.-R. Ding, S.-L. Wu, Y.-H. Zhang, and Y.-Q. Yin

Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China

 

Abstract: The oxygen transfer reagent, Me3NO. 2H2O and PhIO, can distinctly promote the coordinative hydrogenation of hex-l-ene, methyl methacrylate, and styrene catalyzed by heterometallic carbonyl clusters, (μ3-S)RuCo2(CO)9 and (μ3-Se)RuCo2(CO)9. The tetrahedron structure of the metal cluster catalyst was confirmed by the single-crystal X-ray diffraction. The tetrahedral skeleton of the catalyst keeps intact in catalytic process. For hex-1-ene in methanol solution, [Hex-1-ene]/[Cat.] = 200, [Me3NO . 2H2O]/[Cat.] = 4, p = 5.0-6.0 MPa, 60°C and 24 h are the best reaction conditions. A plausible mechanism of the promotion of the OTR is given.

Full paper in Portable Document Format: 535a295.pdf

 

Chemical Papers 53 (5) 295–298 (1999)

Tuesday, October 15, 2019

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