From methylarenes to esters: efficient oxidative Csp3–H activation promoted by CuO decorated magnetic reduced graphene oxide. (6th July 2022)

• Record Type: Journal Article
• Authors: Khalili, Dariush; Rousta, Marzieh; Khalafi-Nezhad, Ali; Ebrahimi, Edris
• Is Part Of: New journal of chemistry. Volume 46:Number 29(2022)
• Page Start: 14052
• Page End: 14064
• Publication Date: 2022-07-06
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj00728b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Magnetic reduced graphene oxide supported CuO: a robust heterogeneous catalyst for oxidative esterification of methylarenes. Abstract : Magnetic reduced graphene oxide supported CuO (rGO/Fe3 O4 –CuO) as a heterogeneous catalyst in cross dehydrogenative coupling (CDC) reactions has been demonstrated for the synthesis of esters using methyl aromatics and aldehydes/benzyl alcohols as coupling partners. Various benzylic esters were prepared efficiently from cheap raw chemicals by employing tert -butyl hydroperoxide (TBHP) as a "green" oxidant and tetra- n -butylammonium bromide (TBAB)/tetra- n -butylammonium iodide (TBAI) as additives. Because of the heterogeneous nature of this catalytic system, simple filtration was used to separate the catalyst.