Graphene oxide anchored with sulfonic acid-functionalized glycerin: production, characterization and catalytic performance for the synthesis of N,N′-alkylidene bisamides

Abstract

A novel nanosheet-structured material, namely graphene oxide anchored with sulfonic acid-functionalized glycerin (GO@Gl-SO3H), was prepared and characterized by FTIR, EDS, FESEM, TEM and XRD analyses. Afterward, its catalytic performance was examined for the synthesis of N,N′-alkylidene bisamides through the reaction of benzamide (2 eq.) and arylaldehydes (1 eq.) under solvent-free conditions. GO@Gl-SO3H was a highly effective catalyst for the reaction and afforded the products in high yields and short reaction times.