Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.cattod.2004.07.002
| Title: | Zirconia catalysts in meerwein-ponndorf-verley reduction of citral | Authors: | Zhu, Y. Liu, S. Jaenicke, S. Chuah, G. |
Keywords: | Geraniol Grafted zirconium 1-propoxide Hydrous zirconia MPV reduction of citral Nerol Zr-zeolite beta |
Issue Date: | 3-Nov-2004 | Citation: | Zhu, Y., Liu, S., Jaenicke, S., Chuah, G. (2004-11-03). Zirconia catalysts in meerwein-ponndorf-verley reduction of citral. Catalysis Today 97 (4 SPEC. ISS.) : 249-255. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cattod.2004.07.002 | Abstract: | Zirconium-containing catalysts were found to be active in the Meerwein-Ponndorf-Verley (MPV) reduction of citral. Good activity and selectivity to the reduced alcohol, geraniol and nerol, were observed over hydrous zirconia and zirconium 1-propoxide supported on silica. In particular, hydrous zirconia calcined at temperatures below 300°C was highly active. Hydrous zirconia catalysts modified by NaOH, NH4F, PO 4 3- and SO4 2- had lower activity. Surface hydroxyl groups are postulated to be involved in ligand exchange with the reductant, 2-propanol. Zr-zeolite beta showed high activity, but poorer selectivity than the other two samples, due to subsequent dehydration of the product formed. For all catalysts, the trans-isomer of citral was preferentially reduced over the cis-isomer. © 2004 Elsevier B.V. All rights reserved. | Source Title: | Catalysis Today | URI: | http://scholarbank.nus.edu.sg/handle/10635/95515 | ISSN: | 09205861 | DOI: | 10.1016/j.cattod.2004.07.002 |
| Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.