BRUNNER, H and AMBERGER, K and WIEHL, J (1991) ASYMMETRIC CATALYSIS, .68. ENANTIOSELECTIVE HYDROGENATION OF ACETYLACETONE WITH TRANSITION-METALS MODIFIED WITH NABR/L-(+)-TARTARIC ACID. BULLETIN DES SOCIETES CHIMIQUES BELGES, 100 (8). pp. 571-584. ISSN 0037-9646,
Full text not available from this repository.Abstract
Enantioselective hydrogenation of acetylacetone AcacH to 4-hydroxy-2-pentanone HP and 2,4-pentanediol PD on various types of transition metal complexes modified with NaBr/L-(+)-tartaric acid was carried out. Finely divided catalysts prepared by cocondensation of the transition metals Cr, Mn, Fe, Co, Ni, the alloys Ni/Al, Ni/Zn, Ni/Cu, which were activated by NaOH treatment, and nickel powders with different surface areas were used. Transition metals and alloys obtained by condensation showed satisfactory enantioselectivity but had low hydrogenation activity. Modified nickel powders achieved high enantioselectivities and activities. The enantioselectivity could be correlated to the surface area of the nickel catalysts with a maximum between 5-7.5 m2/g.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COMPLEXES; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54928 |
Actions (login required)
 |
View Item |
