Double bond isomerization of 5-vinylbicyclo[2.2.1]hept-2-ene to 5-ethylidenebicyclo[2.2.1]hept-2-ene over alkaline earth oxides
- 46 Downloads
All the alkaline earth oxides exhibit activities for double, bond isomerization of 5-vinylbicyclo[2.2.1]hept-2-ene (VBH) to 5-ethylidenebicyclo[2.2.1]hept-2-ene (EBH) at a reaction temperature of 273 K. The order of the activity on the basis of unit weight of catalyst was CaO>MgO>SrO>BaO when compared under optimum pretreatment conditions. The E/Z ratio in the products is determined by the reaction temperature regardless of the type of catalyst; the ratios were 82/18 and 88/12 for the reaction temperatures of 323 and 273 K, respectively.
KeywordsDouble bond isomerization 5-vinylbicyclo[2.2.1]hept-2-ene 5-ethylidenebicyclo[2.2.1]hept-2-ene alkaline earth oxides
Unable to display preview. Download preview PDF.
- 1.G. Suzukamo, M. Fukao, M. Minobe:Chem. Lett., 585 (1987).Google Scholar
- 2.G. Suzukamo, M. Fukao, T. Hibi, K. Tanaka, K. Chikaishi: in K. Tanabe, H. Hattori, T. Yamaguchi and T. Tanaka, (Editors),Acid-Base Catalysis, Proc. Inter. Symp. on Acid-Base Catalysis, Sapporo, Japan, November 28–December 1, 1988, Kodansha-VCH Verlag, Tokyo-Basel, 1989, p. 405.Google Scholar
- 3.T. Baba, T. Endou, H. Handa, Y. Ono:J. Appl. Catal., A,97, L19 (1993).Google Scholar
- 4.G. Zhang, H. Hattori, T. Tanabe:J. Appl. Catal.,36, 189 (1988).Google Scholar
- 5.H. Hattori, N. Yoshii, K. Tanabe: in Proc. 5th Int. Congr. Catal., Miami Beach, 10, 233 (1972).Google Scholar
- 6.K. Tanabe, M. Misono, Y. Ono, H. Hattori:New Solid Acids and Bases, p. 39. Kodansha-Elsevier, Tokyo-Amsterdam 1985.Google Scholar