Metal Free Acid Base Catalyst in the Selective Synthesis of 2,5-Diformylfuran from Hydroxymethylfurfural, Fructose, and Glucose

• Published in: ACS sustainable chemistry & engineering 2017-01, Vol.5 (1), p.701-707
• Main Authors: Rathod, Pramod V, Nale, Sagar D, Jadhav, Vrushali H
• Format: Article
• Language: English
• ISSN: 2168-0485; 2168-0485
• DOI: 10.1021/acssuschemeng.6b02053

A novel metal free acid–base (CC-SO3H-NH2) catalyst was synthesized by introducing acidic −SO3H, −COOH, and silyl­oxypropyl­amine (−OSiCH2CH2CH2NH2) functional groups on glucose derived carbocatalyst. The catalyst was characterized by Fourier transform infrared (FTIR), powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), and Brunauer–Emmett–Teller (BET) analyses. Superior catalytic activity was shown by the catalyst toward one-pot synthesis of DFF using molecular oxygen as the sole oxidant. The catalyst was found to be highly selective in synthesis of 2,5-diformylfuran (DFF) from hydroxy­methyl­furfural (HMF), fructose, and, more importantly, from glucose with excellent yields. Moreover, the catalyst was easily recycled and reused without any significant loss in its catalytic activity.