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https://doi.org/10.1016/j.cattod.2010.10.043
Title: | KF on γ-alumina: An efficient catalyst for the aldol condensation to pseudoionones | Authors: | Raju, V. Radhakrishnan, R. Jaenicke, S. Chuah, G.K. |
Keywords: | Aldol condensation Alumina-supported KF Base catalyst Pseudoionone formation |
Issue Date: | 30-Apr-2011 | Citation: | Raju, V., Radhakrishnan, R., Jaenicke, S., Chuah, G.K. (2011-04-30). KF on γ-alumina: An efficient catalyst for the aldol condensation to pseudoionones. Catalysis Today 164 (1) : 139-142. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cattod.2010.10.043 | Abstract: | KF/γ-alumina is an effective catalyst for the aldol condensation of citral with acetone. Even at a relatively low acetone/citral ratio of 1-10, the selectivity to pseudoionones was high, ranging between 82% and 97%. X-ray diffraction shows the presence of KF and K3AlF6 crystallographic phases on the supported catalyst. At KF loadings of 3-6.75 mmol g-1, a pretreatment of the catalyst by heating to 450 °C was necessary to obtain an active catalyst. However, samples with KF loadings of 8.5 mmol g-1 and higher were active even without pretreatment, facilitating handling and use of the catalysts. The development of (1 1 1) planes revealed by in situ XRD during the thermal activation process correlates with the activity for aldol condensation. © 2010 Elsevier B.V. All rights reserved. | Source Title: | Catalysis Today | URI: | http://scholarbank.nus.edu.sg/handle/10635/95479 | ISSN: | 09205861 | DOI: | 10.1016/j.cattod.2010.10.043 |
Appears in Collections: | Staff Publications |
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