Journal
JOURNAL OF CATALYSIS
Volume 241, Issue 2, Pages 319-327Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2006.04.035
Keywords
L-proline; layered double hydroxides; heterogeneous catalysts; asymmetric aldol reaction; optical stability; enantiomeric selectivity
Categories
Ask authors/readers for more resources
A heterogeneous catalyst (L-Pro LDHs) was developed using intercalation Of L-proline in Mg-Al LDH. An investigation of the thermal stability and optical stability showed that the immobilization of the chiral catalytic centers in restricted galleries enhanced the enantiomeric stability against thermal treatment and light irradiation. Asymmetric aldol reaction of benzaldehyde and acetone was carried out using L-Pro LDHs as catalyst, resulting in a good yield (90%) and a high enantiomeric excess (94%). The enantiomeric selectivity of L-Pro LDHs was found to be more stable to thermal pretreatment compared with the pristine L-proline. The possible reaction mechanism was proposed in light of the homogeneous mechanism. The effects of chemical composition of L-Pro LDHs and reaction conditions on catalytic efficiency were also investigated. (c) 2006 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available