A5103166279- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Fullerene Chemistry and Applications
- Organic Chemistry Cycloaddition Reactions
- Molecular Sensors and Ion Detection
- Oxidative Organic Chemistry Reactions
- Graphene research and applications
- Radical Photochemical Reactions
- Carbon Nanotubes in Composites
- Analytical Chemistry and Chromatography
- Crystallography and molecular interactions
- Mass Spectrometry Techniques and Applications
- Chemical Synthesis and Analysis
- Chemical Synthesis and Reactions
- Analytical chemistry methods development
- Luminescence and Fluorescent Materials
- Amino Acid Enzymes and Metabolism
- Nanomaterials for catalytic reactions
- Asymmetric Hydrogenation and Catalysis
- Peptidase Inhibition and Analysis
- Phosphorus compounds and reactions
- Synthesis of Organic Compounds
- Asymmetric Synthesis and Catalysis
- Supramolecular Chemistry and Complexes
- Synthesis and Reactivity of Sulfur-Containing Compounds
University of Chinese Academy of Sciences
2012-2024
Institute of Physics
2022
Chinese Academy of Sciences
1996-2017
Institute of Solid State Physics
2017
Institute of High Energy Physics
2014
Tsinghua University
2007
The University of Texas at Austin
1999-2004
Institute of Chemistry
1996-1998
A highly efficient iridium catalyst is developed for the chemoselective reduction of aldehydes to alcohols in water, using formic acid as a reductant.
The first examples of anion radical cycloaddition induced by homogeneous electron transfer from chemical agents are described. Specifically, upon exposure to chrysene radical, bis(enone) substrates found engage in stereoselective intramolecular [2 + 2] cycloaddition. These studies, along with the corresponding electrochemically initiated reactions, provide insight into this fundamentally new pattern reactivity and support feasibility expanding novel reaction type.
The prevalently used immunoassays for fast screening of aftatoxins (AFs) usually cannot meet the requirement simultaneous determination total AFs (aflatoxin B1 + aflatoxin B2 G1 G2) due to deficiency highly group-specific antibodies. This paper describes a two-step chromogenic reaction based method quantitatively detect in rice using colorimetric measurement without antibody. In method, colorless transform into green-colored indophenol products through with sodium hydroxide and...
Exposure of easily reduced aromatic bis(enones) 1a−1e to the methyl Gilman reagent Me2CuLi·LiI at 0 °C in tetrahydrofuran solvent provides products tandem conjugate addition−Michael cyclization, 2a−2e, along with [2 + 2] cycloaddition, 3a−3e. Complete partitioning alkylation and cycloaddition pathways may be achieved by adjusting loading reagent, rate addition concentration reaction mixture. The manifold is favored rapid excess higher substrate concentrations, while slow same lower...
The current study reports on a direct mass spectrometry (MS) analysis method using in-capillary dicationic ionic liquid (DIL)-based in situ dispersive liquid–liquid microextraction (DLLME) and sonic-spray ionization (SSI). developed merged extraction, enrichment, ionization, detection of perfluorinated compounds (PFCs) environmental water into single step. A microliter-scale ternary fluidic system was designed integrated disposable pulled capillary, which an imidazolium-based germinal DIL...
We introduce, for the first time, an inorganic base-mediated cyclization and auto-oxidation of bisallenones/bisalkynones. This reaction is realized under mild conditions through precise control base atmosphere, providing a wide range structurally diverse fused-pyran derivatives with moderate to excellent yields. Utilizing KOH as initiator nitrogen series novel cyclohexane-fused pyran was obtained primary product. In contrast, aerobic Na
[reaction: see text] The cation radical Diels-Alder and cyclobutanation reactions of cis- trans-1,2-(diaryloxy)ethenes with a cyclic an acyclic diene have been found to be stereospecific, in accord concerted cycloaddition mechanism.
Abstract It is still a challenge to develop green, simple and effective approaches prepare aromatic iodides. Herein, novel green strategy for the direct mono‐iodination of compounds starting with molecular iodine has been developed. The uses ceria nanocrystals decompose hydrogen peroxide, giving hydroxyl radicals which are demonstrated experimentally computationally be crucial promote iodinations.
Excessive intake of beer could increase serum uric acid levels, leading to high risk gout, which was previously attributed purine content in beer. Recent reports that purine-rich vegetables and bean products do not cause higher levels support this theory. Why excessive a gout has been unclear. Other factors affecting the accumulation blood have explored. Beer contains relatively D-amino acids due racemization L-amino induced by food processing. catalyzed oxidase produce H2O2, is further...
A new method has been proposed to realize the visual detection of Cr 3+ using 4-nitrobenzenethiol (4-NBT) and 4-mercaptobenzoic acid (4-MBA) modified silver nanoparticles ( AgNPs ). The presence induces aggregation through cooperative metal–ligand interaction, resulting in a color change from bright yellow purple. Consequently, could be monitored by colorimetric response UV-Vis spectrophotometer or even naked eyes. We firstly used ethylene diamine tetraacetic (EDTA) as masking agent...
Abstract Multifunctional materials that exhibit different physical properties in a single phase have potential for use multifunctional devices. Herein, we reported an organic–inorganic hybrid compound [(18‐crown‐6)K][Fe(1)Cl(1) 4 ] 0.5 [Fe(2)Cl(2) ( 1 ) by incorporating KCl and FeCl 3 into 18‐crown‐6 molecule, which acts as host of the six O atoms providing lone pair electrons to anchor guest potassium cation, [FeCl − counterion charge balance construct complex salt. This salt exhibited...
Abstract We recently developed a novel Ir‐catalyzed dynamic kinetic isomerization reaction for Achmatowicz rearrangement products. In this update, we show that products derived from the can also undergo allylic etherification in presence of an appropriate ligand and additive to afford useful intermediates synthesis carbohydrates. The addition triphenyl phosphite shuts down pathway promotes pathway. diphenyl phosphate improved diastereoselectivity reaction. Interestingly, opposite was...
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTSynthesis of cis- and trans-1,2-Diphenoxyethenes p,p'-Disubstituted DiaryloxyethenesJingkui Yang Nathan L. BauldView Author Information Department Chemistry Biochemistry, The University Texas, Austin, Texas 78712 Cite this: J. Org. Chem. 1999, 64, 25, 9251–9253Publication Date (Web):November 18, 1999Publication History Received8 September 1998Revised19 October 1999Published online18 November inissue 1 December...