A5002077440- Catalysis for Biomass Conversion
- Cyclopropane Reaction Mechanisms
- Catalytic Alkyne Reactions
- Catalysis and Hydrodesulfurization Studies
- Lignin and Wood Chemistry
- Thermochemical Biomass Conversion Processes
- Biofuel production and bioconversion
- Catalytic C–H Functionalization Methods
- Nanomaterials for catalytic reactions
- Adsorption and biosorption for pollutant removal
- Graphene and Nanomaterials Applications
- Supercapacitor Materials and Fabrication
- Petroleum Processing and Analysis
- X-ray Diffraction in Crystallography
- Microbial Metabolic Engineering and Bioproduction
- Biodiesel Production and Applications
- High Entropy Alloys Studies
- Electrocatalysts for Energy Conversion
- Advanced Cellulose Research Studies
- Crystallization and Solubility Studies
- CO2 Reduction Techniques and Catalysts
- Ionic liquids properties and applications
- Food Drying and Modeling
- Carbon and Quantum Dots Applications
- Enzyme-mediated dye degradation
Henan Agricultural University
2019-2024
Michigan Technological University
2024
Xiamen University
2014-2015
Recent rapid development in homogeneous gold catalysis affords an alternative and particularly thriving strategy for the generation of carbenes through gold-catalyzed oxidation/amination/cycloaddition alkynes, while it avoids employment hazardous potentially explosive diazo compounds as starting materials carbene generation. In addition to facile secure operation, generated this display good chemoselectivity distinct from other metal produced related approach. N-heterocyclic (NHC) is a...
An efficient copper(I)-catalyzed enyne oxidation/cyclopropanation for the modular synthesis of cyclopropane derivatives is described, which represents first non-noble metal-catalyzed enynes by in situ generated α-oxo copper carbenes. This protocol allows assembly valuable cyclopropane-γ-lactams generally good to excellent yields with diastereoselectivity. More significantly, enantioselective version has been disclosed chiral catalysts.
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A highly convenient copper(I)-catalyzed oxidation-initiated cyclopropanation of indolyl ynamide for the rapid construction indole-fused cyclopropane-lactams is described, which represents, to best our knowledge, first non-noble-metal-catalyzed oxidation/dearomatization by in situ generated α-oxo copper carbenes. Compared hydrazone and diazo, use alkynes as carbene precursors allows occur under a safe pathway. Moreover, this transformation can lead divergent synthesis pentacyclic...
Herein, we describe an environmentally friendly strategy to synthesize Ag nanoparticles on Nanodiamond (ND) by utilizing natural adhering and reduction properties of tea polyphenols (TPs). Firstly, the surface ND was modified TPs through their ability. Then, functioned as reducing agents for precursor in situ. The synthesis process, structure its physicochemical nanohybrid were tracked characterized UV-Vis, FTIR, TGA, HRTEM, XRD XPS. It has been shown that with uniform size distribution...
A reaction system has been studied for the production of C12 and C18 hydrocarbons from sorbitol by reduction with a hydroiodic acid (HI)–phosphorous mixture. The effects conditions on yield selectivity have investigated. It was found that both increase in water content decrease HI amount lead to exhibits greater effect than HI. time but did not change too much after proceeded 14 h. maximum 62.07% achieved at 34%, sorbitol/hydroiodic acid/phosphorous molar ratio 1:3:8, 12 possible mechanism,...
Described herein is an efficient copper-catalyzed tandem alkyne indolylcupration-initiated 1,2-indole migration/6π-electrocyclic reaction of allene-ynamides with indoles by the in situ-generated metal carbenes. This method allows synthesis valuable indole-fused spirobenzo[f]indole-cyclohexanes high regio- and stereoselectivity. In addition, this affords rapid access to functionalized absence a presumable 5-exo-dig cyclization/Friedel–Crafts alkylation via copper-containing all-carbon 1,4-dipoles.
The objective of this study was to evaluate phenolic compounds produced from the catalytic pyrolysis pine sawdust by commercial catalysts. Eight types catalysts consisting SiO2, montmorillonite, α-Fe2O3, HZSM-5 (Si:Al = 25:1), ZnO, γ-Fe2O3, 50:1), and nano-HZSM-5 50:1) were screened in a fixed bed reactor at reaction temperature 500 °C vapor residence time 3 s. All tested exhibited different performances for adjustment composition bio-oil. 25:1) significantly increased hydrocarbon production...
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