Dehydration of fructose to HMF in presence of (H3O)xSbxTe(2-x)O6 (x = 1, 1.1, 1.25) in H2O-MIBK

Mayer, Sergio Federico; Falcón, Horacio; Dipaola, R.; Ribota, P.; Moyano, L.; Morales‐delaRosa, Silvia; Mariscal, R.; Campos‐Martín, Jose M.; Fierro, J.L.G.

doi:10.1016/j.mcat.2018.12.025

Cited by 20 publications

(21 citation statements)

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“…The world's most abundant renewable carbon resources are found in lignocellulose, which includes cellulose (40-50 %), hemicellulose (20-30 %), lignin (10-25 %), and other smaller groups (Figure 1). [1] Cellulose can be converted into an important bio-sourced platform compound, 5-hydroxymethylfurfural (HMF), [2][3][4][5] by successive reactions: hydrolysis of the β-1,4 bonds of the anhydrous glucose unit [6] to form the corresponding hexose; isomerization of glucose in situ into the corresponding ketose; and the dehydration of fructose. The oxidation of HMF has been presented as an efficient way to valorize compounds from biomass.…”

Section: Introductionmentioning

confidence: 99%

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Innovative Protocols in the Catalytic Oxidation of 5‐Hydroxymethylfurfural

Zhao

Wang

et al. 2020

ChemSusChem

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5-Hydroxymethylfurfural (HMF) has been identified as one of the most promising biomass-based multipurpose platform molecules. Innovative protocols, namely electrocatalysis, photocatalysis, and microwave (MW)-assisted chemistry, as well as continuous-flow systems, add a new dimension and another promising toolbox for the oxidation of HMF in recent years. This Minireview deals with recent progress in the catalytic oxidation of HMF to 2,5-furandicarboxylic acid (FDCA) and other intermediates using noble, non-noble, and metal-free systems deploying emerging protocols. Selective HMF downstream oxidation products could be obtained not only via common catalyst modifications, namely nature of the metal, preparative method, and the property of deployed support, but also by using innovative processes.

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Section: Introductionmentioning

confidence: 99%

“…Mechanism of MW-assisted selective Ag 2 O catalytic HMF oxidation to HMFCA.Ag þ H O ! Intermediate(4)…”

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confidence: 99%

Innovative Protocols in the Catalytic Oxidation of 5‐Hydroxymethylfurfural

Zhao

Wang

et al. 2020

ChemSusChem

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“…The one‐pot conversion of glucose to HMF has two steps, first an isomerization of glucose to fructose and then the dehydration of fructose to HMF. Each step is catalyzed by to kind of catalysts, the isomerization is catalyzed by Lewis acid sites [ 17 ] (we selected MOF as Lewis acid) and the dehydration is catalyzed by Bronsted acid catalysts [ 4 ] (we selected silicotungstic acid as Brønsted acid). The addition of both types of catalysts to the reaction mixture was separate, the addition of MOF and POM, (POM+MOF), or by the addition of the prepared composite (POM@MOF) that contained both kinds of catalysts.…”

Section: Resultsmentioning

confidence: 99%

One‐Pot Conversion of Glucose into 5‐Hydroxymethylfurfural using MOFs and Brønsted‐Acid Tandem Catalysts

Lara‐Serrano

Morales‐delaRosa

Campos‐Martín

et al. 2022

Advanced Sustainable Systems

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The direct conversion reaction of glucose to 5‐hydroxymethylfurfural (HMF) is studied using metal organic framework (MOF) as Lewis‐acid catalysts and a polyoxometalate (POM), silicotungstic acid, as a Brønsted‐type acid with a mixture of 1% glucose solution in γ‐valerolactone (GVL)‐10% H2O at 140 °C. The study is carried out with two routes: one using MOF and POM tandem catalysts added independently and the other through the synthesis of a composite material denoted POM@MOF. The activity tests show that the profiles of the conversion and yield of HMF achieved in both routes are similar, with the reactions with MIL‐53(Al) and MIL‐101(Cr) catalysts producing the highest yield of HMF (40% after 8 h of reaction). Stability tests are performed on the POM@MOF catalysts based on MIL‐53(Al) and MIL‐101(Cr). MIL‐53(Al) and HSiW@MIL‐101(Cr) can be reused, showing a progressive loss in HMF yield due to the leaching of POM.

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“…Mechanistic studies reveal that the cations Sb and Te in the position B of the pyrochlore assist in the incorporation of H 3 O + ions in the pyrochlore correlating the density of acidic sites present in the materials and their catalytic activity (See Figure 39). [71] …”

Section: Perovskites Mediated Organic Transformationsmentioning

confidence: 99%

Modern Trends in the Applications of Perovskites for Selective Organic Transformations

Chandra

2021

ChemistrySelect

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Perovskites have captivated the interest of contemporary synthetic chemists in both the academic and industrial sector due to their multifarious physicochemical properties like excellent thermal stability, oxygen mobility substitution of A and B cations. These perovskite based mixed metal oxides effectively promote selective organic transformations like selective oxidation reactions, selective hydrogenation reactions, nitro to amine reduction, carbon‐carbon and carbon hetero‐bond forming reactions. Furthermore, these mixed metal oxide perovskites have been investigated for the multi‐component domino reactions for synthesis of valuable organic compounds. Recently, metal halide perovskites have emerged as futuristic materials for the catalytic and photocatalytic selective organic transformations to form valuable organic compounds. The present review mainly addresses the recent developments in the catalytic and photocatalytic applications of perovkites in organic synthesis in the past 10 years.

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Dehydration of fructose to HMF in presence of (H3O)xSbxTe(2-x)O6 (x = 1, 1.1, 1.25) in H2O-MIBK

Cited by 20 publications

References 51 publications

Innovative Protocols in the Catalytic Oxidation of 5‐Hydroxymethylfurfural

Innovative Protocols in the Catalytic Oxidation of 5‐Hydroxymethylfurfural

One‐Pot Conversion of Glucose into 5‐Hydroxymethylfurfural using MOFs and Brønsted‐Acid Tandem Catalysts

Modern Trends in the Applications of Perovskites for Selective Organic Transformations

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