A5044732414- Radical Photochemical Reactions
- Catalytic C–H Functionalization Methods
- Oxidative Organic Chemistry Reactions
- Ammonia Synthesis and Nitrogen Reduction
- Sulfur-Based Synthesis Techniques
- Membrane Separation and Gas Transport
- Membrane Separation Technologies
- Proteins in Food Systems
- Plant Pathogenic Bacteria Studies
- Plant-Microbe Interactions and Immunity
- Minerals Flotation and Separation Techniques
- CO2 Reduction Techniques and Catalysts
- MXene and MAX Phase Materials
- Fuel Cells and Related Materials
- Asymmetric Hydrogenation and Catalysis
- Advanced Photocatalysis Techniques
- Synthesis and properties of polymers
- Chemical Reactions and Isotopes
- Polysaccharides Composition and Applications
- Bioactive Compounds in Plants
- Plant Ecology and Soil Science
- Carbon dioxide utilization in catalysis
- Soil and Land Suitability Analysis
- Garlic and Onion Studies
- Polyamine Metabolism and Applications
Chinese Academy of Sciences
2008-2025
University of Chinese Academy of Sciences
2020-2025
Shanghai Institute of Organic Chemistry
2019-2025
ShanghaiTech University
2018-2024
Wuchang University of Technology
2021-2024
Green Chemistry
2024
Sichuan University of Science and Engineering
2024
State Key Laboratory of Organometallic Chemistry
2024
Institute of Food Science and Technology
2021
Chinese Academy of Agricultural Sciences
2021
We describe a synergistic utilization of cerium photocatalysis and photoinduced electron transfer catalysis that enables an atom- step-economical ring expansion readily available cycloalkanols. This operationally simple protocol provides rapid access to privileged synthetically challenging bridged lactones. The mild catalytic manifold has been adapted continuous flow for scale-up applications employed the concise synthesis polycyclic core nepalactones.
Modern photoredox catalysis has traditionally relied upon metal-to-ligand charge-transfer (MLCT) excitation of metal polypyridyl complexes for the utilization light energy activation organic substrates. Here, we demonstrate catalytic application ligand-to-metal (LMCT) cerium alkoxide facile alkanes utilizing abundant and inexpensive trichloride as catalyst. As demonstrated by cerium-catalyzed C–H amination alkylation hydrocarbons, this reaction manifold enabled use alcohols practical...
Dehydroxymethylation, the direct conversion of alcohol feedstocks as alkyl synthons containing one less carbon atom, is an unconventional and underexplored strategy to exploit ubiquity robustness materials. Under mild redox-neutral reaction conditions, utilizing inexpensive cerium catalyst, photocatalytic dehydroxymethylation platform has been furnished. Enabled by ligand-to-metal charge transfer catalysis, functionality reliably transferred into nucleophilic radicals with loss molecule...
The intermediacy of alkoxy radicals in cerium-catalyzed C–H functionalization via H-atom abstraction has been unambiguously confirmed. Catalytically relevant Ce(IV)–alkoxide complexes have synthesized and characterized by X-ray diffraction. Operando electron paramagnetic resonance transient absorption spectroscopy experiments on isolated pentachloro Ce(IV) alkoxides identified as the sole heteroatom-centered radical species generated ligand-to-metal charge transfer (LMCT) excitation....
The integration of ligand-to-metal charge transfer (LMCT) catalytic paradigms with radical intermediates has transformed the selective functionalization inert C-H bonds, facilitating use nonprecious metal catalysts in demanding transformations. Notably, aerobic carbonylation methane to acetic acid remains formidable due rapid oxidation methyl radicals, producing undesired C1 oxygenates. We present an iron terpyridine catalyst utilizing LMCT achieve exceptional C2/C1 selectivity through...
Under mild reaction conditions with inexpensive cerium and nickel catalysts, easily accessible free alcohols can now be utilized as operationally simple robust carbon pronucleophiles in selective C(sp3)–C(sp2) cross-couplings. Facilitated by automated high-throughput experimentation, sterically encumbered benzoate ligands have been identified for complexes, enabling the synergistic cooperation of catalysis emerging metallaphotoredox catalysis. A broad range aromatic halides facilely employed...
1-Aminocyclopropane-1-carboxylate (ACC) deaminase activity is an efficient marker for bacteria to promote plant growth by lowering ethylene levels in plants. We aim develop a method rapidly screening containing ACC deaminase, based on colorimetric ninhydrin assay of ACC.A reliable was developed quantify using heat-resistant polypropylene chimney-top 96-well PCR plates, having the wells evenly heated boiling water, preventing accidental contamination from water and limiting evaporation. With...
Abstract We describe a cerium‐catalyzed aerobic oxidative ring expansion for the expedient construction of synthetically challenging macrolactones under visible‐light conditions. Cyanoanthracene has been employed as co‐catalyst to accelerate turnover cerium cycle leading fast conversion within 20 min irradiation. Taking advantage high efficiency and operationally simple conditions, collection over 100 equipped with systems ranging from 9‐ 19‐membered macrocycles have prepared building...
The effects and mechanisms of Paenibacillus polymyxa Sx3 on growth promotion the suppression bacterial leaf blight in rice were evaluated this study. results from a plate assay indicated that inhibited 20 strains Xanthomonas oryzae pv. (Xoo). Rice seedling experiments promoted plant suppressed blight. In addition, bacteriological tests showed was able to fix nitrogen, solubilize phosphate produce indole acetic acid, indicating various may be involved by Sx3. culture filtrate P. reduced...
A synergistic photocatalytic system using a bisphosphonium catalyst and cobalt has been developed, enabling the selective oxidation of benzylic alcohols under oxidant-free environmentally benign conditions. High efficiencies have obtained for variety alcohol substrates, exclusive selectivity aldehyde products achieved across board. Furthermore, this proved to be efficient when performed continuous-flow conditions, even simple easily assembled setup.
We present a ligand‐to‐metal charge transfer (LMCT)‐enabled catalytic platform utilizing cerium(IV) benzoate complexes to address the long‐standing challenge of directly coupling free alcohols with electron‐rich alkenes, overcoming inherent polarity mismatches. This approach effectively circumvents typical selectivity in single‐electron processes, enabling selective generation electrophilic alkoxy radicals from presence redox‐labile alkenes. The Ce‐benzoate‐based photocatalytic protocol...
We present a ligand‐to‐metal charge transfer (LMCT)‐enabled catalytic platform utilizing cerium(IV) benzoate complexes to address the long‐standing challenge of directly coupling free alcohols with electron‐rich alkenes, overcoming inherent polarity mismatches. This approach effectively circumvents typical selectivity in single‐electron processes, enabling selective generation electrophilic alkoxy radicals from presence redox‐labile alkenes. The Ce‐benzoate‐based photocatalytic protocol...
The aim of this study was to evaluate the antagonistic activity halotolerant bacteria against rice brown stripe pathogen Acidovorax oryzae.
Production of isomaltulose by newly isolated Klebsiella sp. LX3.The bacterial isolate LX3, which transforms sucrose to and trehalulose, has been from a soil sample in Singapore. Morphological biochemical analysis, as well 16s rRNA sequence demonstrated that the could represent new member genus Klebsiella. The strain several interesting features. immobilized cells LX3 convert more than 99% products consist 87% isomaltulose, 11.6% <1% glucose.The production synthase is inducible its substrate...
The selective incorporation of a deuterium atom into small molecules with high selectivity is highly valuable for medical and chemical research. Unfortunately, this remains challenging due to the complete deuteration caused by commonly used hydrogen isotope exchange strategies. We report development photocatalytic monodeuteration protocol utilizing C-C bond as unconventional functional handle. synergistic combination radical-mediated scission transfer processes enables effective...
Abstract The pervaporation performance of cellulose acetate (CA) membranes prepared from acetone (AC), acetone/tetrahydrofuran (AC/THF), acetone/chloroform (AC/CF), and acetone/cyclohexane (AC/CYH) was studied for separating MeOH/MTBE (methyl tert ‐butyl ether) mixture with 5 (wt) % MeOH. dilute‐solution properties Huggins constant ( K H ) CA dissolved in AC AC/solvent mixtures 15 vol the second solvent (tetrahydrofuran, chloroform, or cyclohexane) were examined. J α affected by types used...