Electrocatalytic amino acid synthesis from biomass-derivable keto acids over ball milled carbon nanotubes DOI
Yiying Xiao, Chia Wei Lim, Jinquan Chang

et al.

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(8), P. 3117 - 3126

Published: Jan. 1, 2023

Using ball milled CNT catalysts, the electrocatalytic reductive amination of keto acids to amino was efficiently conducted. Moderate high formation rates (up 180.9 mmol g −1 cat h ) and Faradaic efficiencies 90%) were achieved.

Language: Английский

Reusable Nickel Nanoparticles‐Catalyzed Reductive Amination for Selective Synthesis of Primary Amines DOI
Kathiravan Murugesan, Matthias Beller, Rajenahally V. Jagadeesh

et al.

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 58(15), P. 5064 - 5068

Published: Feb. 14, 2019

The preparation of nickel nanoparticles as efficient reductive amination catalysts by pyrolysis in situ generated Ni-tartaric acid complex on silica is presented. resulting stable and reusable Ni-nanocatalyst enables the synthesis functionalized structurally diverse primary benzylic, heterocyclic aliphatic amines starting from inexpensive readily available carbonyl compounds ammonia presence molecular hydrogen. Applying this Ni-based protocol, -NH2 moiety can be introduced compounds, for example, steroid derivatives pharmaceuticals.

Language: Английский

Citations

110
Synergistic catalysis on Fe–Nx sites and Fe nanoparticles for efficient synthesis of quinolines and quinazolinones via oxidative coupling of amines and aldehydes DOI Creative Commons
Zhi-Ming Ma, Tao Song, Youzhu Yuan

et al.

Chemical Science, Journal Year: 2019, Volume and Issue: 10(44), P. 10283 - 10289

Published: Jan. 1, 2019

A heterogeneous nanocomposite of Fe–Fe3C nanoparticles and Fe–Nx sites on N-doped porous carbon allows for efficient synthesis quinolines quinazolinones via oxidative coupling amines aldehydes in aq. solution using H2O2 as the oxidant.

Language: Английский

Citations

104
Ambient-Temperature Synthesis of Primary Amines via Reductive Amination of Carbonyl Compounds DOI
Chao Xie, Jinliang Song, Manli Hua

et al.

ACS Catalysis, Journal Year: 2020, Volume and Issue: 10(14), P. 7763 - 7772

Published: June 16, 2020

Efficient synthesis of primary amines via low-temperature reductive amination carbonyl compounds using NH3 and H2 as the nitrogen hydrogen resources is highly desired challenging in chemistry community. Herein, we employed naturally occurring phytic acid a renewable precursor to fabricate titanium phosphate (TiP)-supported Ru nanocatalysts with different reduction degrees RuO2 (Ru/TiP-x, x represents temperature) by combining ball milling molten-salt processes. Very interestingly, obtained Ru/TiP-100 had good catalytic performance for at ambient temperature, resulting from synergistic cooperation support (TiP) Ru/RuO2 suitable proportion Ru0 (52%). Various could be efficiently converted into corresponding high yields. More importantly, conversion other substrates reducible groups also achieved temperature. Detailed investigations indicated that partially reduced were indispensable. The activity selectivity catalyst originates relatively acidity electron density metallic Ru0.

Language: Английский

Citations

93
A General Catalyst Based on Cobalt Core–Shell Nanoparticles for the Hydrogenation of N‐Heteroarenes Including Pyridines DOI Creative Commons
Kathiravan Murugesan, Vishwas G. Chandrashekhar, Carsten Kreyenschulte

et al.

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(40), P. 17408 - 17412

Published: June 16, 2020

Abstract Herein, we report the synthesis of specific silica‐supported Co/Co 3 O 4 core–shell based nanoparticles prepared by template cobalt‐pyromellitic acid on silica and subsequent pyrolysis. The optimal catalyst material allows for general selective hydrogenation pyridines, quinolines, other heteroarenes including acridine, phenanthroline, naphthyridine, quinoxaline, imidazo[1,2‐a]pyridine, indole under comparably mild reaction conditions. In addition, recycling these Co their ability dehydrogenation catalysis are showcased.

Language: Английский

Citations

82
Electrochemical reduction of acetonitrile to ethylamine DOI Creative Commons
Rong Xia, Dong Tian, Shyam Kattel

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: March 29, 2021

Abstract Electrifying chemical manufacturing using renewable energy is an attractive approach to reduce the dependence on fossil sources in industries. Primary amines are important organic building blocks; however, synthesis often hindered by poor selectivity because of formation secondary and tertiary amine byproducts. Herein, we report electrocatalytic route produce ethylamine selectively through electroreduction acetonitrile at ambient temperature pressure. Among all electrocatalysts, Cu nanoparticles exhibit highest Faradaic efficiency (~96%) −0.29 V versus reversible hydrogen electrode. Under optimal conditions, achieve partial current density 846 mA cm −2 . A 20-hour stable performance demonstrated 100 with 86% efficiency. Moreover, reaction mechanism investigated computational study, which suggests high due moderate binding affinity for intermediates.

Language: Английский

Citations

80
Reductive amination using cobalt-based nanoparticles for synthesis of amines DOI
Kathiravan Murugesan, Vishwas G. Chandrashekhar,

Thirusangumurugan Senthamarai

et al.

Nature Protocols, Journal Year: 2020, Volume and Issue: 15(4), P. 1313 - 1337

Published: March 18, 2020

Language: Английский

Citations

71
Efficient and selective approach to biomass-based amine by reductive amination of furfural using Ru catalyst DOI
Hongtao Zou, Jinzhu Chen

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

Published: March 2, 2022

Language: Английский

Citations

67
Lignin amination valorization: heterogeneous catalytic synthesis of aniline and benzylamine from lignin-derived chemicals DOI
Yue Rong, Na Ji, Zhihao Yu

et al.

Green Chemistry, Journal Year: 2021, Volume and Issue: 23(18), P. 6761 - 6788

Published: Jan. 1, 2021

Using lignin derivatives as substrates, important organic nitrogen chemicals such aniline and benzylamine can be obtained with high selectivity through heterogeneous catalyzed amination.

Language: Английский

Citations

65
Metal single-atom catalysts for selective hydrogenation of unsaturated bonds DOI

Zhiyi Sun,

Shuo Wang, Wenxing Chen

et al.

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(9), P. 5296 - 5319

Published: Jan. 1, 2021

Single atom catalysts (SACs) show excellent catalytic performance in selective hydrogenation. Herein, the applications of SACs hydrogenation unsaturated bonds are reviewed.

Language: Английский

Citations

61
Facile and Efficient Synthesis of Primary Amines via Reductive Amination over a Ni/Al2O3 Catalyst DOI

Chenglong Dong,

Yushan Wu, Hongtao Wang

et al.

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

Citations

56