Asymmetric hydrogenation of ethyl pyruvate over aqueous dispersed Pt nanoparticles stabilized by a cinchonidine-functionalized β-cyclodextrin - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Catalysis Communications Année : 2021

Asymmetric hydrogenation of ethyl pyruvate over aqueous dispersed Pt nanoparticles stabilized by a cinchonidine-functionalized β-cyclodextrin

Sébastien Noël
Hervé Bricout
Stephane Menuel
Anne Ponchel
Eric Monflier
Bastien Leger

Résumé

Cinchonidine-functionalized β-cyclodextrin was used as stabilizing agent for platinum nanoparticles dispersed in water, but also as chiral modifier for the asymmetric hydrogenation of ethyl pyruvate at 30 °C under 40 bar of hydrogen. This functionalized cyclodextrin allowed getting more stable, more catalytically active and also more enantioselective Pt nanoparticles compared to control catalytic systems. NMR and MALDI-MS analyses clearly showed the reduction of the vinyl group of the cinchonidine graft during the nanoparticles preparation. Under hydrogen pressure, the hydrogenation of the quinolinic moiety was also proven and can be responsible for the difficulties encountered during the recycling study.

Domaines

Chimie Catalyse
Fichier principal
Vignette du fichier
S1566736720303484.pdf (1.2 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03139645 , version 1 (03-02-2023)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Sébastien Noël, Eleonora Caronia, Hervé Bricout, Iveta Chena Tichá, Stephane Menuel, et al.. Asymmetric hydrogenation of ethyl pyruvate over aqueous dispersed Pt nanoparticles stabilized by a cinchonidine-functionalized β-cyclodextrin. Catalysis Communications, 2021, 150, pp.106272. ⟨10.1016/j.catcom.2020.106272⟩. ⟨hal-03139645⟩
32 Consultations
24 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More