Impact of cyclodextrins on the behavior of amphiphilic ligands in aqueous organometallic catalysis

Autor: Hervé Bricout, Estelle Léonard, Christophe Len, David Landy, Frédéric Hapiot, Eric Monflier
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1479-1484 (2012)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.8.167
Popis: In this study, we showed that the addition of randomly modified β-cyclodextrin (RAME-β-CD) in aqueous medium could have a beneficial impact on the catalytic performances of phosphane-based aggregates in the Pd-catalyzed cleavage of allyl carbonates (Tsuji–Trost reaction). The RAME-β-CD/phosphane supramolecular interactions helped explain the catalytic results. The presence of RAME-β-CD in the aqueous compartment improved the phosphane-based aggregate dynamics. The exchanges between the hydrophobic substrate-containing aggregate core and the catalyst-containing aqueous phase were then greatly favored, resulting in an increase in the catalytic performances.
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