A5087870452- Catalytic C–H Functionalization Methods
- Asymmetric Hydrogenation and Catalysis
- Synthesis and Catalytic Reactions
- Organophosphorus compounds synthesis
- Advanced Photocatalysis Techniques
- Chemical Synthesis and Reactions
- Chemical Synthesis and Analysis
- Catalytic Cross-Coupling Reactions
- Gas Sensing Nanomaterials and Sensors
- Fluorine in Organic Chemistry
- Grouting, Rheology, and Soil Mechanics
- Asymmetric Synthesis and Catalysis
- Radical Photochemical Reactions
- Cyclopropane Reaction Mechanisms
- Catalytic Alkyne Reactions
- Copper-based nanomaterials and applications
- High Entropy Alloys Studies
- Concrete and Cement Materials Research
- Additive Manufacturing Materials and Processes
- Click Chemistry and Applications
- Axial and Atropisomeric Chirality Synthesis
- Carbon dioxide utilization in catalysis
- ZnO doping and properties
- Metabolomics and Mass Spectrometry Studies
- Molecular Sensors and Ion Detection
State Ethnic Affairs Commission
2021-2025
Shaanxi University of Science and Technology
2020-2023
Minzu University of China
2018-2023
Lanzhou City University
2014-2021
Green Chemistry
2020
Institute of Chemical Engineering
2019
Northwest Minzu University
2017
Lanzhou University
2012-2015
Hubei University
2014
Dalian Institute of Chemical Physics
2011-2013
[RhCp*Cl(2)](2) can catalyze the oxidative coupling of N-aryl and N-alkyl benzamidines with alkynes to give N-substituted 1-aminoisoquinolines in high selectivity.
A novel and inexpensive method of nontoxic, silver-salt-catalyzed carboazidation arylacrylamides to afford corresponding azide oxindoles is reported. This reaction system exhibits great functional group tolerance. All products form a crucial skeleton for the synthesis various indole alkaloids.
A novel metal-free oxidative carbonitration of alkenes by a nitration and C–H functionalization cascade process has been developed. This methodology provides an efficient way to construct valuable nitro-containing oxindoles.
A new method for the synthesis of chiral α-amino acid derivatives by enantioselective C-H arylation N-aryl glycine esters with aryl boric acids in presence a Pd(II)-catalyst has been developed. This work successfully integrates direct oxidation asymmetric and exhibits excellent enantioselectivity.
An effective multicomponent reaction for the synthesis of 4-phosphorylated 4H-chromenes via a tandem phosphorylation/alkylation/cyclization/dehydration sequence with water as only byproduct was developed. Extensive mechanistic investigations involving in situ NMR experiments, time control and HRMS experiment allowed us to elucidate order each subreaction arrive at complete understanding underlying mechanism this reaction. Mechanistic data confirm that begins phospha-aldol-elimination,...
An efficient phospha-aldol/Meyer-Schuster rearrangement cascade reaction between propargylic aldehydes and phosphine oxides has been developed in which various phosphoryl enones were obtained moderate to excellent yields. A comprehensive series of mechanistic experiments, including the identification key intermediates application 18O isotope labeling, confirmed that this proceeds through a phospha-aldol followed by Meyer–Schuster reaction.
[RhCp*Cl2]2 can catalyze the oxidative coupling of secondary isonicotinamides with activated olefins using Cu(OAc)2 as an oxidant. The selectivity be controlled by solvent. In MeCN, mono-olefination and two-fold oxidation reaction is major pathway, while in THF this gave mostly diolefination products. both cases, coupled products contain exocyclic CC bond.
Removal of potassium butyl xanthate by separation over a free 3D BiOBr/graphene hydrogel composite through an adsorption–photocatalysis synergy.
An efficient method has been developed for reacting dialkyl H-phosphonates or diarylphosphine oxides with alcohols constructing C–P bonds.
The primary constraints hindering the widespread adoption of laser powder bed fusion (LPBF) are expensive raw materials, internal defects, difficulty in controlling quality and stability, lack consistency feedstock. spatters induced by violent interaction between can be deposited on unmelted bed, if not effectively separated sieving, they would pose a significant detriment to characteristics recycled powders. In this work, systematic investigation evolution mechanism 316L powders after 10 30...
Main observation and conclusion An efficient Lewis acid enabled ketones phosphonylation to synthesize vinylphosphonates has been developed. This method relays on ketone hydrophosphonylation/α‐hydroxy phosphonates unimolecular elimination (E1) dehydration cascade reaction sequence. Various C—P bond formation products were obtained in moderate excellent yields with water as the only byproduct reaction.
This study investigates a new type of high-performance coated sand as petroleum fracturing proppant material. Modified quartz was with layer low-density resin to reduce the overall density proppant, thereby improving suspension in fluid. Resins play an important role preparation proppants. The mechanism formation studied by examining phase composition and microstructure proppant. results demonstrate that when polyimide content is 6% curing temperature 180 °C, exhibited best performance...
A silver-prompted carbonitration of alkenes involving concomitant direct C–H functionalization and C–N bond formation to synthesize nitrating oxindoles has been developed. The CR TH2 receptor antagonist skeleton can be obtained from one the products with further modification.
The first example of an acid-promoted difunctionalization ketones to construct C–P and C–C bonds via a phospha-aldol-elimination is described under metal- solvent-free conditions.
An effective and economical acid-promoted three-component reaction for the construction of C-P C-C bonds synthesis γ-ketophosphine oxides with water as only byproduct was developed. Detailed mechanistic experiments confirmed that proceeds by phospha-aldol elimination, in which a benzylic carbocation is generated from phosphorylation aldehydes, then reacts ketone enolates under acidic conditions.
An efficient method for the Lewis acid promotion of synthesis 9-phosphoryl fluorenes has been reported. This focuses on ketone phosphonylation to form a C-P bond and C-C between diphenylmethanone H-phosphinate esters, H-phosphites, H-phosphine oxides via phospha-aldol elimination, in which series fluorene derivatives were selectively obtained moderate excellent yields.