International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 287, P. 138658 - 138658
Published: Dec. 10, 2024
Language: Английский
Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 225, P. 120476 - 120476
Published: Jan. 16, 2025
Language: Английский
Citations
1
Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Lignin and tannins can be functionalized or depolymerized to yield large libraries of organic molecules.
Language: Английский
Citations
1
Energies, Journal Year: 2025, Volume and Issue: 18(6), P. 1478 - 1478
Published: March 17, 2025
With the overuse of fossil fuels, people are looking for alternatives. This is an area where biofuels have received a lot attention. Studies also shown that large variety liquid fuels commercial interest can be obtained via lignin valorization. Lignin rich in aromatic ring structures and used as sustainable raw material to produce high-value energy. Therefore, progress preparation from by pyrolysis, hydro-processing, oxidation analyzed this review. Nevertheless, due three-dimension network structure lignin, there many barriers need surmounted before utilizing it, such its complex connection with cellulose hemicellulose, which makes separation difficult. In paper, different pretreatment methods summarized separating other two components. Finally, challenges future trends valorization outlined. It clear construction efficient catalytic systems will focus research field.
Language: Английский
Citations
1
Construction and Building Materials, Journal Year: 2024, Volume and Issue: 458, P. 139590 - 139590
Published: Dec. 20, 2024
Language: Английский
Citations
4
Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
0
Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
0
Trends in Biochemical Sciences, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Citations
0
Accounts of Chemical Research, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 27, 2025
ConspectusStable and inert C-C bonds form the fundamental framework of organic compounds. Consequently, direct transformations involving bond cleavage present an innovative approach for rapid modification remodeling molecular skeletons. In recent years, concept skeletal editing has garnered widespread attention been significantly developed, providing new opportunities late-stage bioactive molecules, high-value transformation bulk chemicals, a revolution in traditional fragment coupling strategies chemical synthesis. Notable advancements this field have focused on cyclic including ring expansion, contraction, ring-opening reactions, thereby enriching synthetic toolbox available to chemists. However, selective remains formidable challenge, especially complex due high dissociation energy difficulty achieving precise selectivity control. Over past few our group made efforts address these challenges. We demonstrated potential molecule reactions as efficient strategy synthesis molecules.Herein, we two major thematic achieved by group, utilizing cascade activation entropy-driven reconstruction via cleavage. These are characterized mild conditions, accessibility catalysts reagents, exceptional functional compatibility, emerging novel approaches through atom-incorporation mainly nitrogenation, oxygenation, halogenation synthesize pharmaceuticals, natural products, material molecules. (1) Ring expansion reactions: developed that enable insertion C-, N-, O-containing units into rings. methodologies offer practical routes synthesizing amides, amines, lactones, nitrogen-containing heterocycles. (2) Ring-opening enables construction distally difunctionalized frameworks. By transition metal catalysis radical-mediated process, successfully both single C═C double within Furthermore, tackled highly challenging arene (ARO) reaction, enabling stereoselective conjugated systems unsaturation liberation aromatic systems. Mechanistic studies DFT calculations provided critical insights processes. also identified key intermediates involved cleavage, benzyl azide, O-acetyl hydroxylamine, β-azido peroxyl radical, copper bisnitrene, 2-nitrene indazole. findings deepened understanding mechanisms strategy, which further promoted discovery related acyclic substrates.
Language: Английский
Citations
0
Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116321 - 116321
Published: March 1, 2025
Language: Английский
Citations
0
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: April 6, 2025
Abstract Lignin, the most abundant natural aromatic macromolecule, holds significant potential for high-value applications. However, its complex and irregular structure, along with challenges in efficient processing, has limited widespread use. In this study, we propose an ecofriendly continuous process utilizing deep eutectic solvents (DESs) lignin depolymerization subsequent production of nanoparticles. DESs, composed choline chloride lactic acid, effectively break down into low-molecular-weight homogeneous fragments while also serving as a solvent nanoparticle formation. The depolymerized nanoparticles (DLNPs) exhibited uniform particle size distribution enhanced surface charge due to interactions DES, resulting excellent long-term dispersion stability. Chemical analyses indicated that primarily involved cleavage β-O-4 linkages retaining structure forming condensation products such pinoresinol phenylcoumaran. Thermal analysis revealed DLNP produced through displayed improved thermal stability compared kraft lignin, suggesting applications high-temperature environments, flame retardants. This study demonstrates DES-based is promising alternative conventional organic methods, providing sustainable pathway valorization.
Language: Английский
Citations
0