Abstract
SiO2-immobilized Eu and Yb catalysts (≡Si–O–Ln–NH2) obtained by the reaction of surface hydroxyl groups on SiO2 with lanthanide metals dissolved in liquid ammonia are active for the partial liquid-phase hydrogenation of benzene to cyclohexene when the reaction was carried out at 423–483 K with hydrogen pressures of 1–5 MPa. Interestingly, only divalent amides are catalytically effective for the partial hydrogenation of benzene.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H. Nagahara, M. Ono and Y. Fukuoka, Stud. Surf. Sci. Catal. 92 (1995) 375; F. Doebert and J. Gaube, Catal. Lett. 31 (1995) 431; J. Struijk, M. D'Angremond, W.J.M. Lucas-De Regt and J.J.F. Scholten, Appl. Catal. A 83 (1992) 263.
H. Imamura, in: Handbook on the Physics and Chemistry of Rare Earths, Vol. 29, eds. K.A. Gschneidner Jr. and L. Eyring (North-Holland, Amsterdam, 2000), ch. 182.
H. Imamura, K. Nishimura, K. Sumioki, M. Fujimoto and Y. Sakata, Chem. Lett. (2001) 450.
J.C. Thompson, Electrons in Liquid Ammonia (Clarendon Press, Oxford, 1976).
H. Imamura, T. Konishi, Y. Sakata and S. Tsuchiya, J. Chem. Soc., Faraday Trans. 88 (1992) 2251.
H. Imamura, T. Konishi, Y. Tokunaga, Y. Sakata and S. Tsuchiya, Bull. Chem. Soc. Jpn. 65 (1992) 244.
H. Imamura, T. Konishi, Y. Sakata and S. Tsuchiya, J. Chem. Soc. Chem. Commun. (1991) 1527.
K. Howell and L.L. Pytlewski, J. Less-Common Met. 19 (1969) 399; S. Salot and J.C. Warf, J. Am. Chem. Soc. 90 (1968) 1932.
C. Hadenfeldt, H. Jacobs and R. Juza, Z. Anorg. Allg. Chem. 144 (1970) 379.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Imamura, H., Kumai, T., Nishimura, K. et al. Partial Liquid-Phase Hydrogenation of Benzene to Cylohexene on SiO2-Immobilized Lanthanide (Eu and Yb) Catalysts. Catalysis Letters 82, 69–71 (2002). https://doi.org/10.1023/A:1020613208478
Issue Date:
DOI: https://doi.org/10.1023/A:1020613208478