Efficient and selective approach to biomass-based amine by reductive amination of furfural using Ru catalyst

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 309, P. 121262 - 121262

Published: March 2, 2022

Language: Английский

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Toward Renewable Amines: Recent Advances in the Catalytic Amination of Biomass-Derived Oxygenates

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(16), P. 10400 - 10440

Published: Aug. 9, 2022

Synthesis of high-value-added chemicals from biomass and/or biomass-derived platform molecules is considered an important strategy to mitigate the global dependency on fossil resources and include renewable in a circular economy. In recent years, synthesis bio-based plastics has received significant attention as potential alternative conventional industrial processes. Thus, lot effort been put into development not only different classes biomonomers but also drop-in chemicals. Amine-derived molecules, especially alcohol-amines, diamines, N-heterocyclic amines, are most functional monomers for production polyamides, polyimides, polyurethanes, polyureas. Additionally, these amines extensively used pharmaceuticals. this review, we will give concise overview up-to-date methods industrially oxygenates. Special be given catalytic amination aldehyde- alcohol-based oxygenates, reaction mechanism, catalyst stability, well their specific challenges opportunities. We anticipate critical comprehensive review provide detailed insights guide effective greener synthetic methodologies.

Language: Английский

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Recent advances in selective catalytic hydrogenation of nitriles to primary amines

Journal of Catalysis, Journal Year: 2021, Volume and Issue: 404, P. 475 - 492

Published: Oct. 29, 2021

Language: Английский

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Facile and Efficient Synthesis of Primary Amines via Reductive Amination over a Ni/Al₂O₃ Catalyst

ACS Sustainable Chemistry & Engineering, Journal Year: 2021, Volume and Issue: 9(21), P. 7318 - 7327

Published: May 19, 2021

The production of primary amines with high efficiency and selectivity employing appropriate catalysts is central importance yet challenging. Here, we reported Ni nanoparticles supported on γ-Al2O3 as a highly active heterogeneous catalyst for the synthesis through reductive amination in presence ammonia hydrogen. resulting Ni/Al2O3 exhibited outstanding performance selective carbonyl compounds (aldehydes ketones) involving aromatic, branched, purely aliphatic chemicals converted into their corresponding excellent yields (87∼99%) under mild reaction conditions (100 °C 2 MPa), which was attributed to synergistic effect strong metal–support interaction combined medium acidic sites. In particular, yield earth-abundant superior that precious metal (Ru, Rh, Pd), suggesting could be promising candidate industrial amines.

Language: Английский

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Catalytic Cleavage of the C–O Bond in Lignin and Lignin-Derived Aryl Ethers over Ni/AlP_yO_x Catalysts

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(15), P. 9473 - 9485

Published: July 20, 2022

The conversion of lignin into value-added chemicals is one the important ways for sustainable development. Herein, phytic acid, a biomass-derived chemical, was used as phosphorus source and pore former to synthesize AlPyOx support. After loading Ni, Ni/AlPyOx catalysts were found be highly active in catalytic model compounds high-value-added under mild conditions. benzyl phenyl ether (α-O-4 compound) could completely converted toluene phenol with near-equivalent selectivity at 30 °C 3 MPa H2. Diphenyl 2-phenoxy-1-phenylethanol also 4-O-5 β-O-4 lignin, respectively. unique activity Ni/AlP0.5Ox attributed metallic Ni that interacts AlP0.5Ox adsorption substrates on carrier. Lignin can degraded over via selective cleavage C–O bond, 26.60 wt % yield identified monomers obtained.

Language: Английский

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Recent catalytic innovations in furfural transformation

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(19), P. 9957 - 9992

Published: Jan. 1, 2024

This review highlights recent advancements in the selective conversion of biomass-derived furfural to high-value platform chemicals over various heterogeneous catalytic systems.

Language: Английский

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Highly Active and Sulfur-Tolerant Ruthenium Phosphide Catalyst for Efficient Reductive Amination of Carbonyl Compounds

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(7), P. 4501 - 4509

Published: March 12, 2024

The catalysis of precious metal phosphides in liquid-phase molecular transformations has rarely been explored. Herein, we reveal the remarkable performance ruthenium phosphide nanoparticles supported on activated carbon (Ru2P/C) as a highly efficient heterogeneous catalyst for reductive amination carbonyl compounds. Typically, Ru2P/C exhibited high activity even under 1 bar H2/NH3 mixed gas, sharp contrast to conventional Ru catalysts that require H2 pressure (H2 2.5–40 bar). Furthermore, demonstrated versatility across aliphatic, aromatic, and heteroaromatic compounds, providing corresponding amines yields. Notably, tolerance toward sulfur-containing known their potential strongly coordinate with active species, leading deactivation. Comprehensive studies based control experiments, kinetic studies, spectroscopic analyses, temperature-programmed desorption measurements, evaluations H2–D2 exchange rates revealed multiple properties significantly contribute its catalytic efficiency. These encompassed H2-activation ability, acidic property formation imine intermediates, sulfur derived from ensemble effect Ru–P bond formation.

Language: Английский

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Insight into the roles of ammonia during direct alcohol amination over supported Ru catalysts

Journal of Catalysis, Journal Year: 2021, Volume and Issue: 399, P. 121 - 131

Published: May 10, 2021

Language: Английский

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Advances in the Catalytic Reductive Amination of Furfural to Furfural Amine: The Momentous Role of Active Metal Sites

ChemSusChem, Journal Year: 2022, Volume and Issue: 15(7)

Published: Feb. 16, 2022

Abstract One‐pot synthesis of sustainable primary amines by catalytic reductive amination bio‐based carbonyl compounds with NH 3 and H 2 is emerging as a promising robust approach. The amines, especially furfuryl amine (FUA) derived from furfural (FUR), wide range applications pharmaceuticals to agrochemicals, have attracted much attention due their versatility. This Review majorly comprised two segments on the FUR FUA, one precious (Ru, Pd, Rh) other non‐precious (Co, Ni) metals different supports in various solvent systems presence . active metal sites generated multiple are accentuated experimental evidence based CO‐diffuse reflectance infrared Fourier‐transform spectroscopy, temperature‐programmed reduction, X‐ray photoelectron calorimetry. Moreover, this comprehensively describes role acidic basic support for yield FUA. Overall, provides an insight into how design develop efficiently catalyst selective broad spectrum corresponding amines.

Language: Английский

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Nanoparticles and single atoms of cobalt synergistically enabled low-temperature reductive amination of carbonyl compounds

Chemical Science, Journal Year: 2022, Volume and Issue: 13(31), P. 9047 - 9055

Published: Jan. 1, 2022

Low-temperature and selective reductive amination of carbonyl compounds is a highly promising approach to access primary amines. However, it remains great challenge conduct this attractive route efficiently over earth-abundant metal-based catalysts. Herein, we designed several Co-based catalysts (denoted as Co@C-N(x), where x represents the pyrolysis temperature) by metal-organic framework ZIF-67 at different temperatures. Very interestingly, prepared Co@C-N(800) could catalyze various aldehydes/ketones synthesize corresponding amines with high yields 35 °C. Besides non-noble metal mild temperature, other unique advantage catalyst was that substrates reduction-sensitive groups be converted into selectively because not active for these low temperature. Systematic analysis revealed composed graphene encapsulated Co nanoparticles atomically dispersed Co-N sites. The particles promoted hydrogenation step, while sites acted acidic activate intermediate (Schiff base). synergistic effect metallic crucial excellent performance Co@C-N(800). To best our knowledge, first study on efficient synthesis via temperature (35 °C).

Language: Английский

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