Isomerization of 5-vinyl-2-norbornene using sodium-coated catalysts

Hee Oh Ji, Sung Ahn Byoung, Jeong Sik Han, Deuk Lee Sang, Seung Wook Kim, Hyunjoo Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Various sodium-coated metal oxide catalysts were prepared using readily available supporting materials such as neutral γ-Al2O 3 (neutral alumina, N-Al2O3) basic γ-Al2O3 (basic alumina, B-Al2O 3), SiO2, MgO, and TiO2, and their catalytic activities were evaluated for the isomerization of 5-vinyl-2-norbornene (VNB) to 5-ethylidene-2-norbornene (ENB). Of various sodium-coated catalysts, Na/N-Al2O3 and Na/B-Al2O3 showed extremely high activities, resulting in quantitative conversion of VNB. Catalyst characterization and isomerization results clearly demonstrated that the presence of both strong basic sites (pKBH ≥ 27) and one-electron donor sites on the Na/Al2O3 is prerequisite for the isomerization of VNB to take place.

Original languageEnglish
Pages (from-to)2202-2204
Number of pages3
JournalBulletin of the Korean Chemical Society
Volume29
Issue number11
Publication statusPublished - 2008 Nov 20

Fingerprint

Isomerization
Sodium
Catalysts
Aluminum Oxide
Oxides
Catalyst activity
Metals
2-norbornene
Electrons

Keywords

  • 5-Ethylidene-2-norbornene
  • Double bond isomerization
  • EPDM rubber
  • Solid base catalyst

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Ji, H. O., Byoung, S. A., Han, J. S., Sang, D. L., Kim, S. W., & Lee, H. (2008). Isomerization of 5-vinyl-2-norbornene using sodium-coated catalysts. Bulletin of the Korean Chemical Society, 29(11), 2202-2204.

Isomerization of 5-vinyl-2-norbornene using sodium-coated catalysts. / Ji, Hee Oh; Byoung, Sung Ahn; Han, Jeong Sik; Sang, Deuk Lee; Kim, Seung Wook; Lee, Hyunjoo.

In: Bulletin of the Korean Chemical Society, Vol. 29, No. 11, 20.11.2008, p. 2202-2204.

Research output: Contribution to journalArticle

Ji, HO, Byoung, SA, Han, JS, Sang, DL, Kim, SW & Lee, H 2008, 'Isomerization of 5-vinyl-2-norbornene using sodium-coated catalysts', Bulletin of the Korean Chemical Society, vol. 29, no. 11, pp. 2202-2204.
Ji, Hee Oh ; Byoung, Sung Ahn ; Han, Jeong Sik ; Sang, Deuk Lee ; Kim, Seung Wook ; Lee, Hyunjoo. / Isomerization of 5-vinyl-2-norbornene using sodium-coated catalysts. In: Bulletin of the Korean Chemical Society. 2008 ; Vol. 29, No. 11. pp. 2202-2204.
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