Please use this identifier to cite or link to this item:
|Title:||Zirconia catalysts in meerwein-ponndorf-verley reduction of citral|
Grafted zirconium 1-propoxide
MPV reduction of citral
|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|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 18, 2018
WEB OF SCIENCETM
checked on Sep 3, 2018
checked on Sep 21, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.