One Pot Cascade Conversion of Bio-Based Furfural to Levulinic Acid with Cu-Doped Niobium Phosphate Catalysts

Fang, Chengjiang; Liu, Yanxiu; Wu, Wen; Li, Hu; Wang, Zhongwei; Zhao, Wenfeng; Yang, Song

doi:10.1007/s12649-017-0131-7

Cited by 20 publications

(9 citation statements)

References 53 publications

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“…The proposed mechanism for the production of LA was divided into two steps: the first involved the formation of the Ru hydride and the second step involved the dehydration and acid hydrolysis reactions that resulted in the ring opening. Fang et al [56] proposed another method for LA synthesis, and this method was based on the availability of the Bronsted acid sites on the NbP-supported copper catalysts fabricated following the impregnation method. Other catalysts (Cu/SiO 2 and Cu/Al 2 O 3 ) were also prepared for comparison.…”

Section: Levulinic Acidmentioning

confidence: 99%

Design of Heterogeneous Catalysts for the Conversion of Furfural to C5 Derivatives: A Brief Review

Viana¹,

Bonfim²,

Silva³

et al. 2022

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Technological development made in the field of biomass application allows synthesizing several high-value products, such as furfuraldehyde. Furfural, produced through sequential hydrolysis and dehydration reactions from biomass, is considered a platform molecule and a precursor of several other chemicals and biofuels that are generated following reactions such as hydrogenation, hydrodeoxygenation, and decarboxylation. This review aims to reveal the environmental-friendly mechanisms followed for producing furfural derivatives and the design of catalysts and supports. Redox and acid-base properties of the molecules have been discussed. The stability, the details of the surface area, and the applications of the molecules to reduce the bottlenecks faced in the industrial production of bioproducts have been explored.

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Section: Levulinic Acidmentioning

confidence: 99%

Design of Heterogeneous Catalysts for the Conversion of Furfural to C5 Derivatives: A Brief Review

Viana¹,

Bonfim²,

Silva³

et al. 2022

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“…[16] Further hydrolysis of furfuryl alcohol, on the other hand, has been much less investigated and only few studies have been presented in the literature so far. [17][18][19][20][21][22][23] They are even fewer if only more sustainable heterogeneous catalytic systems are considered. [18][19][20][21][22][23] It mostly stems from the fact that many authors focused on the alcoholysis of furfuryl alcohol leading to alkyl levulinates.…”

Section: Introductionmentioning

confidence: 99%

Hydrolysis of Furfuryl Alcohol to Angelica Lactones and Levulinic Acid over Nb‐based Catalysts

et al. 2023

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Levulinic acid and angelica lactones are important building blocks obtained from hemicellulose. This process comprises multiple chemical reactions at which furfuryl alcohol is an intermediate, but only few studies have investigated its hydrolysis. This work studied the role played by the nature of acid sites and the impact of their strength and amount on furfuryl alcohol hydrolysis over Nb2O5 and NbOPO4. It was disclosed that production of levulinic acid is a two‐step cascade reaction at which angelica lactones are intermediates. These two hydrolysis steps were catalyzed by Brønsted acid sites with no contribution from Lewis centers. Brønsted acidity of Nb2O5 presented no activity while phosphate moieties on NbOPO4 were effective. Mixtures of organic solvent and water hindered side reactions, improving selectivity to valued bioproducts. 1,4‐dioxane was the most suitable organic solvent. This study shows that selectivity of 96 % of levulinic acid and angelica lactones can be accomplished over NbOPO4.

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“…Rehydration, followed by the ring‐opening of HMF, produces LA and formic acid in equimolar quantities [32] . FUR can also be converted to LA via furfuryl alcohol (FAL) [33] . High‐yielding preparation of LA via hydrophobic analogs of HMF, such as 5‐(chloromethyl)furfural, has also been reported [34] .…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Value Addition of Biomass‐Derived Levulinic Acid: A Review Focusing on its Chemical Reactivity Patterns

Dutta

Bhat

2021

ChemCatChem

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Levulinic acid (LA) is one of the most prominent biomass‐derived chemical building blocks that can be transformed into specialty chemicals like fuels, solvents, monomers for polymers, plasticizers, surfactants, agrochemicals, and pharmaceuticals. Over the past three decades, an enormous amount of research data have been acquired on the preparation and downstream value addition of LA, and these works have been reviewed. However, considering the astonishing number of publications appearing every year on LA derivatives, the periodical review of recent works focusing on unique aspects of chemistry must be undertaken to critically evaluate the achievements to date, reassess the challenges, and recognize new opportunities. This review discusses the chemical‐catalytic synthesis of various derivatives of LA by focusing on its functionalities and reactivity patterns. Recent literature on some crucial derivatives such as γ‐valerolactone, 4,4’‐diphenolic acid, and ethyl levulinate have been tabulated and discussed. The synthetic interconversion between various derivatives, mechanistic insights, critical analysis of the reaction parameters toward selective preparation of various derivatives, and their potential commercial applications have been elaborated using predominantly heterogeneous catalysts. A critical assessment of the relative advantages and shortcomings of the existing synthetic strategies for various derivatives of LA has been presented to enkindle fresh ideas.

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One Pot Cascade Conversion of Bio-Based Furfural to Levulinic Acid with Cu-Doped Niobium Phosphate Catalysts

Cited by 20 publications

References 53 publications

Design of Heterogeneous Catalysts for the Conversion of Furfural to C5 Derivatives: A Brief Review

Design of Heterogeneous Catalysts for the Conversion of Furfural to C5 Derivatives: A Brief Review

Hydrolysis of Furfuryl Alcohol to Angelica Lactones and Levulinic Acid over Nb‐based Catalysts

Recent Advances in the Value Addition of Biomass‐Derived Levulinic Acid: A Review Focusing on its Chemical Reactivity Patterns

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