A5100638926- Asymmetric Hydrogenation and Catalysis
- Catalytic C–H Functionalization Methods
- Catalytic Cross-Coupling Reactions
- Carbon dioxide utilization in catalysis
- Chemical Synthesis and Analysis
- Oxidative Organic Chemistry Reactions
- Radical Photochemical Reactions
- Asymmetric Synthesis and Catalysis
- Synthesis and Catalytic Reactions
- Nanomaterials for catalytic reactions
- Catalysis for Biomass Conversion
- Surface Chemistry and Catalysis
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Chemical Synthesis and Reactions
- Sulfur-Based Synthesis Techniques
- Lignin and Wood Chemistry
- Synthetic Organic Chemistry Methods
- Organoboron and organosilicon chemistry
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Cyclopropane Reaction Mechanisms
- Chemical Reactions and Isotopes
- Catalysis and Hydrodesulfurization Studies
- Polyoxometalates: Synthesis and Applications
- Synthesis of Indole Derivatives
Shaanxi Normal University
2016-2025
Peking University
2001-2025
Northeast Forestry University
2015-2025
Shenzhen Academy of Robotics
2022-2025
Qingdao University of Science and Technology
2025
Wuhan University
2025
Nankai University
2008-2024
State Key Laboratory of Medicinal Chemical Biology
2024
Xiangtan University
2023
Zhengzhou University
2017-2022
In buffered water, a broad range of quinoline derivatives underwent asymmetric transfer hydrogenation in air with the rhodium catalyst 1 and sodium formate as hydrogen source to furnish synthetically important 1,2,3,4-tetrahydroquinolines excellent enantioselectivities (see scheme; R=H, Me, F, Cl, Br, OMe; R′=alkyl, aryl). Detailed facts importance specialist readers are published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available...
The integration of nanocatalysts into the separators lithium-sulfur batteries (LSBs) boosts polysulfide conversion efficiency. However, aggregation catalyst nanoparticles diminishes active surface area. Moreover, densely packed catalyst-modified layers often hinder ion transport rates and impede access to catalytic sites. To overcome these challenges, a strategy is reported for modifying commercial separators, using wood nanocellulose as building block construct hierarchical P-doped MoO2-x...
When combined with a chiral phosphate counteranion, diamine-ligated Ir(III) catalyst displayed excellent enantioselectivities in the asymmetric hydrogenation of wide range acyclic imines, affording amines up to 99% ee.
An iridium catalyst enables the reductive amination of carbonyl groups with unprecedented substrate scope, selectivity, and activity using formic acid as hydrogen source (see scheme). The system provides significant improvement over commonly used boron hydrides. Detailed facts importance to specialist readers are published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: publisher is responsible for...
Vinyl benzoxazinanones undergo highly enantioselective decarboxylative cycloadditions with electron-deficient olefins in the presence of palladium catalysts. Palladium induces decarboxylation parent under mild conditions to produce an intermediate that can be described as a polarized aza-o-xylylene. These intermediates formal [4 + 2] cycloaddition good Michael acceptors substituted hydroquinolines excellent regio-, diastereo-, and enantioselectivities.
In gepuffertem Wasser wurde ein breites Spektrum von Chinolinen durch asymmetrische Transferhydrierung an der Luft mit dem Rhodiumkatalysator 1 und Natriumformiat als Wasserstoffquelle ausgezeichneten Enantioselektivitäten zu den präparativ nützlichen 1,2,3,4-Tetrahydrochinolinen umgesetzt (siehe Schema; R=H, Me, F, Cl, Br, OMe; R′=Alkyl, Aryl).
Up the tempo: The intramolecular addition of oxime radicals to CC bonds was achieved by using DEAD and TEMPO give 4,5-dihydroisoxazoles as a result CO bond-forming, 5-exo-trig cyclization. γ,δ-Unsaturated ketoximes also reacted afford cyclic nitrones through CN bond formation. reactions offer metal-free approach for vicinal difunctionalization unactivated alkenes. Detailed facts importance specialist readers are published "Supporting Information". Such documents peer-reviewed, but not...
The Cu/N-ligand/TEMPO catalytic system was first applied to the aerobic oxidative synthesis of heterocycles. As demonstrated, 2-substituted quinazolines and 4H-3,1-benzoxazines were synthesized efficiently from one-pot reaction aldehydes with 2-aminobenzylamines 2-aminobenzyl alcohols, respectively, by employing CuCl/DABCO/4-HO-TEMPO as catalysts oxygen terminal oxidant.
Formic acid (HCO2H) is an important potential hydrogen storage material, which, in the presence of appropriate catalysts can be selectively dehydrogenated to give H2 and CO2. In this work, well defined N^C cyclometallated iridium(III) complexes based on 2-aryl imidazoline ligands are found excellent for decomposition HCO2H–NEt3 mixtures CO2 under mild conditions with high turnover frequencies (up 147 000 h−1 at 40 °C) essentially no CO formation. The modular structures these have allowed...
Abstract A highly effective visible light‐promoted “radical‐type” coupling of N‐heteroarenes with aryldiazonium salts in water has been developed. The reaction proceeds at room temperature [Ru(bpy) 3 ]Cl 2 ⋅ 6 H O as a photosensitizer and commercial household light bulb source. Pyridine variety substituted pyridines are substrates under these conditions, only monosubstituted products formed different regioselectivities. Using aqueous formic acid solvent, an array xanthenes, thiazole,...
Abstract DMSO methylates a broad range of amines in the presence formic acid, providing novel, green and practical method for amine methylation. The protocol also allows one‐pot transformation aromatic nitro compounds into dimethylated simple iron catalyst.
Quite a pair: The first organocatalytic direct asymmetric reduction of unprotected 1H-indoles to chiral indolines has been developed. reaction proceeds through the generation electrophilic indolenium ions by Brønsted acid, and then Lewis base (1) mediated enantioselective hydride transfer with HSiCl3. A variety were obtained moderate excellent enantioselectivity. MOM=methoxymethyl. Detailed facts importance specialist readers are published as "Supporting Information". Such documents...
A highly effective C-O coupling reaction of (hetero)aryl electrophiles with primary and secondary alcohols is reported. Catalyzed by a NiII -aryl complex under long-wave UV (390-395 nm) irradiation in the presence soluble amine base without any additional photosensitizer, enables etherification aryl bromides chlorides as well sulfonates wide range aliphatic alcohols, affording synthetically important ethers. Intramolecular also possible. The appears to proceed via NiI -NiIII catalytic cycle.
Levulinic acid (LA) is transformed into pyrrolidinones via iridium-catalysed reductive amination using formic as the hydrogen source under aqueous conditions. The catalytic system most active and performs mildest conditions ever reported for of LA.
Abstract A photochemical C–N coupling of aryl halides with nitroarenes is demonstrated for the first time. Catalyzed by a Ni II complex in absence any external photosensitizer, readily available undergo variety halides, providing step‐economic extension to widely used Buchwald–Hartwig reaction. The method tolerates partners steric‐congestion and functional groups sensitive bases nucleophiles. Mechanistic studies suggest that reaction proceeds via addition an radical, generated from I /Ni III...
Abstract A highly effective hydroxylation reaction of aryl halides with water under synergistic organophotoredox and nickel catalysis is reported. The OH group the resulting phenols originates from water, following deprotonation facilitated by an intramolecular base on ligand. Significantly, bromides as well less reactive chlorides served substrates to afford a wide range functional groups. Without need for strong inorganic or expensive noble‐metal catalyst, this process can be applied...
Abstract Reductive amination of various ketones and aldehydes by transfer hydrogenation under aqueous conditions has been developed, using cyclometallated iridium complexes as catalysts formate hydrogen source. The pH value the solution is shown to be critical for a high catalytic chemoselectivity activity, with best being 4.8. In comparison that in organic solvents, reductive an phase faster, molar ratio substrate catalyst (S/C) can set 1×10 5 , highest S/C ever reported reactions. easy...
By the use of 1-chloro-1,2-benziodoxol-3-one, an age-old reagent, practical and efficient chlorination method is achieved. This hypervalent iodine reagent amenable not only to nitrogen-containing heterocycles but also selected classes arenes, BODIPY dyes, pharmaceuticals. In addition, advantages, such as easy preparation recyclable, air- moisture-stable, in combination with success a gram-scale experiment grant this great potential for industrial application.
Abstract An efficient catalytic system for the alkylation of amines with either alcohols or under mild conditions has been developed, using cyclometallated iridium complexes as catalysts. The method broad substrate scope, allowing synthesis a diverse range secondary and tertiary good to excellent yields. By controlling ratio substrates, both mono‐ bis‐alkylated can be obtained high selectivity. In particular, methanol used alkylating reagent, affording N ‐methylated products selectively. A...
An unprecedented Rh-catalyzed direct methylation of ketones with N,N-dimethylformamide (DMF) is disclosed. The reaction shows a broad substrate scope, tolerating both aryl and alkyl various substituents. Mechanistic studies suggest that DMF delivers methylene fragment followed by hydride in the process.