Juan Du

ORCID: 0000-0002-9671-1004
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About
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Research Areas
  • Catalytic C–H Functionalization Methods
  • Cyclopropane Reaction Mechanisms
  • Sulfur-Based Synthesis Techniques
  • Chemical Synthesis and Reactions
  • Synthesis and Catalytic Reactions
  • Oxidative Organic Chemistry Reactions
  • Fluorine in Organic Chemistry
  • Asymmetric Synthesis and Catalysis
  • Laser-Matter Interactions and Applications
  • CO2 Reduction Techniques and Catalysts
  • Turbomachinery Performance and Optimization
  • Carbon dioxide utilization in catalysis
  • Synthesis of heterocyclic compounds
  • Catalytic Alkyne Reactions
  • Hydrogels: synthesis, properties, applications
  • Advanced Polymer Synthesis and Characterization
  • Laser Material Processing Techniques
  • Heat Transfer Mechanisms
  • Radical Photochemical Reactions
  • Ionic liquids properties and applications
  • Atmospheric and Environmental Gas Dynamics
  • Asymmetric Hydrogenation and Catalysis
  • Spectroscopy and Laser Applications
  • Solid State Laser Technologies
  • Nonlinear Optical Materials Studies

Nanning Normal University
2023-2025

Shenzhen University
2021-2025

Chinese Academy of Sciences
2012-2024

Sichuan University
2020-2024

University of Chinese Academy of Sciences
2016-2024

Baoji University of Arts and Sciences
2011-2024

Hebei University of Science and Technology
2024

Henan Academy of Sciences
2024

Institute of Engineering Thermophysics
2024

Shanghai Institute of Optics and Fine Mechanics
2014-2023

A catalyst-free procedure has been developed for the construction of sulfonated oxindoles <italic>via</italic> direct arylsulfonylation activated alkenes with sulfinic acids.

10.1039/c4gc00231h article EN Green Chemistry 2014-01-01

Development of high-performance catalysts for carbon dioxide (CO2) hydrogenation is crucial CO2 utilization. Herein, a heterogeneous catalyst to formate was developed by coordinating the mononuclear Ru3+ center (Ru hereafter) with N,P-containing polymer, which synthesized from phosphonitrilic chloride trimer and 2,6-diaminopyridine. Multiple nitrogen functionalities in polymer (N content: 25.9 wt %) containing pyridine phosphazene not only provided an electron-rich coordination environment...

10.1021/acscatal.0c01678 article EN ACS Catalysis 2020-07-08

Abstract In this study, a new type of lead‐free double perovskite Cs 2 TeBr 6 combined with metal‐free semiconductor g‐C 3 N 4 heterojunction is constructed and used for photocatalytic CO reduction the first time. The S‐scheme charge transfer mechanism between systematically verified by X‐ray photoelectron spectroscopy (XPS), electron spin resonance (ESR) in situ Fourier infrared spectroscopy(FT‐IR). formation S‐type makes photocatalyst have higher separation ability highest redox ability....

10.1002/adfm.202308411 article EN Advanced Functional Materials 2023-10-12

Inspired by a fungicide, we designed 5-vinyloxazolidine-2,4-diones as new precursors of π-allylpalladium zwitterionic intermediates and developed palladium-catalyzed asymmetric (5 + 3) cycloaddition with azomethine imines (3 2) 1,1-dicyanoalkenes. Both reactions proceeded smoothly under mild reaction conditions to produce various chiral heterocyclic compounds in high yields excellent enantioselectivities. These results revealed that were type suitable precursor for palladium catalysis will...

10.1039/d3sc00112a article EN cc-by-nc Chemical Science 2023-01-01

Miniaturization is currently an important trend in environmental and food monitoring because it holds great promise for on-site detection. We report here two ready-to-use chip-based fluorescent sensors, compatible with microarray technology reagentless, one-step, fast, highly sensitive selective detection of the mercuric ion (Hg2+) turn-on turn-off operation modes. Both modes are based on T–Hg2+–T coordination between neighboring polythymine (T) strands at a high probe density its induced...

10.1021/ac301954j article EN Analytical Chemistry 2012-09-07

α-Acidic isocyanides are versatile reagents in organic synthesis, especially for the synthesis of five-membered heterocycles via [3 + 2]-cycloaddition reactions with activated multiple bonds. In this communication, first 3]-cross-cycloaddition α-acidic 1,3-dipolar azomethine imines to generate a series 1,2,4-triazine derivatives significant regiochemical control under mild catalytic reaction conditions is described. This new strategy shows that can also be taken as potent six-membered...

10.1021/ol501829k article EN Organic Letters 2014-07-23

Diastereo- and enantioselective cycloaddition of 3-nitroindoles with vinyl aziridine was realized under Pd-catalysis using commercially available Walphos as the ligand, affording pyrroloindolines in high yields diastereo- enantioselectivities. The reaction can be scaled up to a gram scale products are easily converted amino pyrroloindoline other derivatives.

10.1002/asia.201800133 article EN Chemistry - An Asian Journal 2018-03-23

An asymmetric [3 + 2] cycloaddition reaction of vinyl epoxides with α,β-unsaturated ketones, the single activated electron-deficient alkenes, has been achieved under Pd-catalysis in excellent diastereo- and enantioselectivity. The utilities protocol are demonstrated by transformation products into other useful chiral molecules. Density functional theory calculations rationalize stereocontrol reaction.

10.1021/acs.orglett.7b03386 article EN Organic Letters 2017-11-22

The relay catalytic platform is very efficient and selective for CO<sub>2</sub> electroreduction to ethanol.

10.1039/d0sc01133a article EN cc-by-nc Chemical Science 2020-01-01

A mild visible-light-induced Pd-catalyzed intermolecular radical cascade reaction of N-arylacrylamides with unactivated alkyl bromides is disclosed. Photoexcited Pd complexes transfer a single electron in this protocol, and hybrid Pd-radical species are involved as the key intermediates. Sophisticated bioactive oxindole derivatives bearing various substituents substitution patterns can be efficiently afforded through approach.

10.1021/acs.orglett.1c01698 article EN Organic Letters 2021-07-08

Thermo-catalytic CO2 hydrogenation to high-value oxygenates has been regarded as one of the most powerful strategies that can potentially alleviate excessive emissions. However, due high chemical stability and variability pathways, it is still challenging achieve highly active selective hydrogenation. Single atom catalysts (SACs) with ultrahigh metal utilization efficiency extraordinary electronic features have displayed growing importance for thermo-catalytic multiple developed improve...

10.1021/acscatal.4c06065 article EN ACS Catalysis 2024-10-23

A facile microarray-based fluorescent sensor for the detection of lead (II) was developed based on catalytic cleavages substrates by a DNAzyme upon its binding to Pb(2+). The release fluorophore labelled resulted in decrease fluorescence intensity. had quantifiable range from 1 nM μM and selectivity >20 fold Pb(2+) over other metal ions.

10.1039/c1an15633k article EN The Analyst 2011-10-28

The activated alkynes have been used successfully for the first time as dipolarophile in palladium-catalyzed asymmetric (3 + 2) cycloaddition, affording highly functionalized cyclopentenes good to high yields with chemoselectivities and enantioselectivities. introduction of an additional carbonyl group at α-position alkynyl esters is key activating carbon-carbon triple bond. reaction process was investigated, inverse Pd-catalyzed cycloaddition observed.

10.1021/acs.orglett.9b02431 article EN Organic Letters 2019-08-13

1,1,2-Trisubstituted alkenes with a single activator were used in the Pd-catalyzed asymmetric cycloaddition of vinyl epoxides high diastereo- and enantioselectivities.

10.1039/c8cc07996j article EN Chemical Communications 2018-01-01

Alkynyl esters are viable dipolarophiles for the palladium-catalyzed asymmetric (3 + 2) cycloaddition with vinyl epoxides. The chiral dihydrofurans obtained in high yields and ee values. use of a benzylic substituted P,N-ligand is essential. usefulness synthetic method has been demonstrated; 2,3-cis-tetrahydrofuran was also provided.

10.1021/acs.orglett.2c00253 article EN Organic Letters 2022-02-14

Since over 70% of carbon emissions are from urban areas, it is great importance to develop an effective measurement technique that can accurately monitor atmospheric CO2 in global areas. Remote sensing could be way achieve this goal. However, due high aerosol loading there large, inadequately resolved areas the products acquired by passive remote sensing. China planning launch Atmospheric Environment Monitoring Satellite (AEMS) equipped with a CO2-light detecting and ranging (LIDAR) system....

10.3390/rs10070985 article EN cc-by Remote Sensing 2018-06-21

A transition-metal-free multicomponent cascade reaction of α-halogenated ketones, <italic>ortho</italic>-aminophenols, and aldehydes using a dipeptide phosphonium salt catalyst was developed for the construction various 2<italic>H</italic>-1,4-benzoxazines.

10.1039/d0gc02134b article EN Green Chemistry 2020-01-01

The Pd-catalyzed asymmetric [4+2] cycloaddition reaction of an aliphatic 1,4-dipole with singly activated electron-deficient alkenes is realized for the first time, enabled by using a newly developed benzylic substituted P,N-ligand, affording tetrahydropyrans having three continuous chiral centers in high yields diastereo- and enantioselectivities. rational transition states as well role center are proposed.

10.1021/acs.orglett.0c01638 article EN Organic Letters 2020-06-26

Abstract Electrochemical reduction of CO 2 (CO RR) to formate is a promising route prepare value‐added chemical. Developing low‐cost and efficient electrocatalysts with high product selectivity still grand challenge. Herein, novel Cu anchored on hollow carbon spheres catalysts (HCS/Cu‐ x , represents the mass CuCl added in system) designed controllable copper/carbon heterogenous interfaces. Rich interfaces structure optimized HCS/Cu‐0.12 catalyst are beneficial charge transmission. Compared...

10.1002/smll.202102629 article EN Small 2021-09-12

Complexes of a poly(methacrylic acid-co-methyl methacrylate) network with poly(ethylene glycol) stabilized by hydrogen bonds were prepared. By introducing glycol), the complexes possessed shape memory effect, due to which large difference in storage modulus below and above glass transition temperature occurred. The morphology was investigated mechanism behavior discussed. This kind can be regarded as novel network.

10.1039/b207024n article EN Journal of Materials Chemistry 2002-01-01
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