Titre :

Direct aerobic oxidation of monoalcohol and diols to acetals using tandem ru@mof catalysts

Auteur(s) :

Zhang, Songwei [Auteur]
Li, Jerry Pui Ho [Auteur]
Zhao, Jingpeng [Auteur]
Wu, Dan [Auteur]
Yuan, Biao [Auteur]
Hernandez, Willinton Yesid [Auteur]
Zhou, Wen-Juan [Auteur]
He, Tao [Auteur]
Yu, Yi [Auteur]
Yang, Yong [Auteur]
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Li, Tao [Auteur]

Titre de la revue :

Nano research

Nom court de la revue :

Nano Res.

Date de publication :

2020-03-13

ISSN :

1998-0124

Mot(s)-clé(s) en anglais :

alcohols
aerobic oxidation
Ru nanoparticles
metal-organic framework
acetalization

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

The aerobic oxidation of monoalcohols and diols to acetals is an important academic and industrial challenge for the production of fine chemicals and intermediates. The existing methods usually rely on a two-step process ...
Lire la suite >The aerobic oxidation of monoalcohols and diols to acetals is an important academic and industrial challenge for the production of fine chemicals and intermediates. The existing methods usually rely on a two-step process in which alcohols are first oxidized to aldehydes over metal catalysts (Ru, Pt, Pd) and then acetalized using acids. Due to the instability of aldehydes, how to avoid over-oxidation to their respective carboxylic acids and esters is a long-standing challenge. For this reason, certain non-conjugated dialdehydes have never been successfully produced from diol oxidation. Hereby we report a Ru@metal-organic framework (MOF) tandem catalyst containing ultra-fine Ru nanoparticles (< 2 nm) for direct alcohol to acetal conversion of monoalcohol and diols with no formation of carboxylic acids. Mechanistic study reveals that the presence of Lewis acid sites in the MOF work in concert with Ru active sites to promptly convert aldehydes to acetals thereby effectively suppressing the formation of over-oxidation byproducts.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)

Date de dépôt :

2022-03-02T07:14:55Z