A review on recent trends in selective hydrodeoxygenation of lignin derived molecules

Tillou, Jake G.; Ezeorah, Chigozie J.; Kuchta, Joseph J.; Dissanayake Mudiyanselage, Sachini C. D.; Sitter, James D.; Vannucci, Aaron K.

doi:10.1039/d3su00232b

Cited by 7 publications

(1 citation statement)

References 134 publications

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“…Numerous studies have focused on the hydrodeoxygenation of lignin model compounds, providing valuable insights into the influence of catalyst properties and experimental conditions, such as temperature and hydrogen pressure (H 2 ), on the reaction mechanism and catalytic performance. Those systematic studies have been presented in reviews, and that information has facilitated the development of catalysts with particular properties, for example, catalysts that exhibit enhanced resistance to aqueous medium, and medium with low pH values [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Metal-Based Heterogeneous Catalysts for the Synthesis of Valuable Chemical Blends via Hydrodeoxygenation of Lignin-Derived Fractions

Chávez-Sifontes,

Ventura

2024

Catalysts

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Currently, many research projects are focused on the conversion of renewable raw materials into chemicals and fuels. Lignocellulosic biomass is a raw material used for the production of bio-oils and black liquors. These biomass-derived fractions offer promising paths for the production of valuable chemical products. Various catalytic methods have been investigated for upgrading the biomass-derived fractions. Researchers are interested in the hydrodeoxygenation process (HDO); in this process, the oxygen groups are eliminated by breaking the C-O bonds and water as a product. Incorporating heterogeneous catalysts (i.e., noble metals, transition metals, and metal sulfides) improves this process. Most HDO review articles describe catalytic results for model phenolic compounds. However, there is also a need to investigate the catalytic activity of real biomass-derived fractions. This paper explains research results regarding the upgrading of lignin-derived fractions (i.e., black liquors) by HDO. The paper has been organized according to the type of heterogeneous catalyst and shows compelling results based on different experimental conditions. The final sections present an analysis of the documented results and outline perspectives about integrating lignin into the biorefinery framework.

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Section: Introductionmentioning

confidence: 99%

Metal-Based Heterogeneous Catalysts for the Synthesis of Valuable Chemical Blends via Hydrodeoxygenation of Lignin-Derived Fractions

Chávez-Sifontes,

Ventura

2024

Catalysts

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CuI Coordination Polymer‐Catalyzed Azide–Alkyne Cycloaddition Click Reaction at Room Temperature

Sahoo,

Patra,

Rom

et al. 2023

Eur J Inorg Chem

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Framework based compounds for eco‐friendly catalysis is of utmost industrial interest. CuI‐catalyzed “click” reactions are a class of highly efficient and widely used chemical reactions in organic synthesis for potential applications in biotechnology, medicine, polymer, and material sciences. The importance of click chemistry also acknowledge by 2022 Noble Prize in chemistry. One of the most well‐known click reactions is the copper‐catalyzed azide‐alkyne cycloaddition (CuAAC), which is a type of Huisgen 1,3‐dipolar cycloaddition reaction. Herein, three stable copper(I)‐coordination polymers (CPs), [Cu(4‐ABPT)Cl], CP‐1; [Cu(4‐ABPT)Br], CP‐2; [Cu2(4‐ABPT)0.5I2], CP‐3; (4‐ABPT=3,5‐di(pyridine‐4‐yl)‐4H‐1,2,4‐triazol‐4‐amine) have been chosen for CuAAC reaction, due to presence of both Lewis acidic (copper ion), and basic (pyridyl and amine) sites. The counter anion plays a crucial role in their structural motif as well as catalytic efficiency. These easily synthesizable and scalable catalysts exhibit the trend of CP‐1>CP‐2>CP‐3 in catalysis for the selective conversion of phenylacetylene, benzyl bromide, and sodium azide into 1,4‐cycloaddition product within 2 h at ambient temperature and solvent free reaction conditions. CuAAC reaction using catalyst CP‐1 exhibits near quantitative conversion within 2 h at room temperature in solvent free conditions. Herein, we demonstrated the bulk‐scale synthesis of CuI CPs for efficient azide‐alkyne cycloaddition click reaction under mild reaction conditions.

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Catalytic hydroconversion of lignin-based aromatics to aviation fuels—a review

Gundekari,

Manupathi,

Chandu

et al. 2024

Biomass Conv. Bioref.

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A review on recent trends in selective hydrodeoxygenation of lignin derived molecules

Abstract: A review on the selective catalytic hydrodeoxygenation of lignin biomass derived compounds. The focus is on recent reports which highlight achievements in selectively and reactivity trends which lead to deoxygenated aromatic products.

Cited by 7 publications

References 134 publications

Metal-Based Heterogeneous Catalysts for the Synthesis of Valuable Chemical Blends via Hydrodeoxygenation of Lignin-Derived Fractions

Metal-Based Heterogeneous Catalysts for the Synthesis of Valuable Chemical Blends via Hydrodeoxygenation of Lignin-Derived Fractions

CuI Coordination Polymer‐Catalyzed Azide–Alkyne Cycloaddition Click Reaction at Room Temperature

Catalytic hydroconversion of lignin-based aromatics to aviation fuels—a review

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