Summary
The cobalt and ruthenium bimetallic complex of an inorganic polymer, polyalumazane (abbr. as Al-N-Co-Ru), was prepared. The catalytic behavior of this complex for the hydroformylation of cyclohexene was studied. The conversion percents were more than 90% in a certain reaction temperature and pressure. Both of the conversion and product composition was also affected by the Ru/Co ratio in catalyst and the CO/H2 ratio in reactant gas. Aldehyde was firstly formed in the hydroformylation, and then it was further hydrogenated to form the corresponding alcohol. There was no any other by-product formed in the reaction. Compared with the corresponding homogeneous catalyst system, the Al-N-Co-Ru catalyst has higher catalytic activity and stability with lower Ru/Co ratio (1.86). After reused for several times, the catalyst did not lose its activity. The total turnover number was more than 2500 (based on the amount of cobalt used).
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Cao, S.K., Huang, M.Y. & Jiang, Y.Y. Catalytic behavior of silica-supported polyalumazane-Co-Ru bimetallic complex for the hydroformylation of cyclohexene. Polymer Bulletin 19, 353–357 (1988). https://doi.org/10.1007/BF00263936
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DOI: https://doi.org/10.1007/BF00263936