ChemCatChem p. 3584 - 3591 (2016)
Update date:2022-07-29
Topics:
Bonrath, Werner
Pressel, Yann
Schütz, Jan
Ferfecki, Erich
Topp, Klaus-Dieter
The aldol condensations of various aldehydes with ketones in the presence of anionic (basic) ion-exchange resins have been investigated. Both batch and continuous modes were studied and compared for the reaction of citral (a mixture of geranial and neral) with acetone to give ψ-ionone. Different reaction conditions were investigated, and the performances of five different ion-exchange resins were compared. The most stable resins could be used for 10 cycles in batch mode or 1000 min in continuous mode without a significant loss in activity or selectivity.
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