Temperature Stable Ion Exchange Resins as Catalysts for the Manufacturing of Vitamin Precursors by Aldol Reaction.

ABSTRACT: This study explores the potential of robust, strongly basic type I ion exchange resins-specifically, Amberlyst^® A26 OH and Lewatit^® K 6465-as catalysts for the aldol condensation of citral and acetone, yielding pseudoionone. Emphasis is placed on their long-term stability and commendable performance in continuous operational settings. The aldol reaction, which traditionally is carried out using aqueous sodium hydroxide as the catalyst, holds the potential for enhanced sustainability and reduced waste production through the use of basic ion exchange resins in heterogeneous catalysis. Density Functional Theory (DFT) calculations are employed to investigate catalyst deactivation mechanisms. The result of these calculations indicates that the active sites of Amberlyst<

SUBMITTER: Vosberg J 

PROVIDER: S-EPMC10532307 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature