@article {48034,
	title = {Metal-free approach towards efficient synthesis of FDCA using a p-toluene sulfonic acid (p-TSA)-derived heterogeneous solid acid catalyst and oxone over two steps from HMF, fructose and glucose},
	journal = {New Journal of Chemistry},
	volume = {46},
	year = {2022},
	month = {MAY},
	pages = {10272-10279},
	type = {Article},
	abstract = {<p>
	In this work, a metal-free approach towards the synthesis of 2,5-furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF), fructose and glucose is reported over two steps using a p-toluene sulfonic acid (p-TSA)-derived heterogeneous solid acid catalyst (p-TSA-POM) in the first step and oxone as an oxidant in the second step. HMF, fructose and glucose were converted to 2,5-diformylfuran (DFF) using the p-TSA-POM catalyst followed by oxidation of DFF to FDCA using oxone. To the best of our knowledge, this is the first metal-free approach for the synthesis of FDCA directly from glucose. DFF was obtained from HMF in 91\% yield, whereas it was obtained in 85\% and 61\% yields from fructose \&amp; glucose, respectively. DFF was further converted to FDCA using oxone as an oxidant. FDCA was obtained in an overall yield of 84\%, 78\% and 56\% from HMF, fructose \&amp; glucose, respectively.</p>
},
	issn = {1144-0546},
	doi = {10.1039/d2nj01207c},
	author = {Tamboli, Asma T. Biradar and Kirdant, Swapnali P. and Jadhav, Vrushali H.}
}
