Biphasic aqueous organometallic catalysis promoted by cyclodextrins: Can surface tension measurements explain the efficiency of chemically modified cyclodextrins? - Université de Lille Accéder directement au contenu
Article Dans Une Revue Journal of Colloid and Interface Science Année : 2007

Biphasic aqueous organometallic catalysis promoted by cyclodextrins: Can surface tension measurements explain the efficiency of chemically modified cyclodextrins?

Résumé

Methylated and hydroxypropylated cyclodextrins (CDs) are highly efficient mass transfer promoters in biphasic aqueous organometallic processes. The surface tension measurements demonstrated that these CDs adsorb at air–water interface and allowed to determine surface excess of CD by using Gibbs adsorption equation. Interestingly, a good correlation between surface excess and catalytic activity was obtained in the case of hydroformylation and Tsuji–Trost reactions. These results point out the importance of CD adsorption at the interface in biphasic aqueous organometallic processes.

Dates et versions

hal-04558832 , version 1 (25-04-2024)

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Loïc Leclercq, Herve Bricout, Sebastien Tilloy, Eric Monflier. Biphasic aqueous organometallic catalysis promoted by cyclodextrins: Can surface tension measurements explain the efficiency of chemically modified cyclodextrins?. Journal of Colloid and Interface Science, 2007, Journal of Colloid and Interface Science, 307, pp.481-487. ⟨10.1016/j.jcis.2006.12.001⟩. ⟨hal-04558832⟩
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