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Selective Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid Using air and Chitosan-derived porous nitrogen-enriched carbonaceous carbon nitride catalyst
Citation:
Verma, S., R. Varma, AND M. Nadagouda. Selective Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid Using air and Chitosan-derived porous nitrogen-enriched carbonaceous carbon nitride catalyst. ACS Meeting, Orlando, FL, March 31 - April 04, 2019.
Impact/Purpose:
Use of renewable sources for the production of useful materials. 5-hydroxymethylfurfuryl (HMF) is one of the common but essential platform chemicals derived from carbohydrates and can be further upgraded to a variety of useful entities such as 2,5-furandicarboxylic acid (FDCA).1 FDCA has widely used the substance in the production of bio-based polymers namely polyethylene 2,5-furandicarboxylate (PEF) and fine chemicals. Herein, we develop an efficient, sustainable, cost-effective and metal-free protocol for the aerial oxidation of 5-HMF to FDCA using marine waste originated chitosan-derived porous CNx catalyst under mild reaction conditions.2 This highly active PCNx catalyst has been synthesized via calcination of the chitosan at 300 °C under nitrogen atmosphere. The graphitic nitrogen in PCNx activates the oxygen and plays a crucial role in the aerobic oxidation of alcohols; the oxidation of 5-HMF to FDCA is accomplished in high yield (83%) under ambient air pressure at 70 °C. The PCNx catalyst shows very good recyclability and no significant loss of activity has been observed up to the fifth run.
Description:
5-hydroxymethylfurfuryl (HMF) is one of the common but essential platform chemicals derived from carbohydrates and can be further upgraded to a variety of useful entities such as 2,5-furandicarboxylic acid (FDCA).1 FDCA has widely used the substance in the production of bio-based polymers namely polyethylene 2,5-furandicarboxylate (PEF) and fine chemicals. Herein, we develop an efficient, sustainable, cost-effective and metal-free protocol for the aerial oxidation of 5-HMF to FDCA using marine waste originated chitosan-derived porous CNx catalyst under mild reaction conditions.2 This highly active PCNx catalyst has been synthesized via calcination of the chitosan at 300 °C under nitrogen atmosphere. The graphitic nitrogen in PCNx activates the oxygen and plays a crucial role in the aerobic oxidation of alcohols; the oxidation of 5-HMF to FDCA is accomplished in high yield (83%) under ambient air pressure at 70 °C. The PCNx catalyst shows very good recyclability and no significant loss of activity has been observed up to the fifth run.