A5087950310- Fire effects on concrete materials
- Structural Behavior of Reinforced Concrete
- Pesticide Residue Analysis and Safety
- Structural Load-Bearing Analysis
- Wood Treatment and Properties
- Structural Response to Dynamic Loads
- Bamboo properties and applications
- Natural Fiber Reinforced Composites
- Catalytic C–H Functionalization Methods
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Pesticide and Herbicide Environmental Studies
- Cyclopropane Reaction Mechanisms
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Fire dynamics and safety research
- Catalytic Alkyne Reactions
- Tree Root and Stability Studies
- Insect and Pesticide Research
- Pharmaceutical and Antibiotic Environmental Impacts
- Antibiotics Pharmacokinetics and Efficacy
- Innovative concrete reinforcement materials
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Analytical Methods in Pharmaceuticals
- Pediatric health and respiratory diseases
- Analytical chemistry methods development
Guizhou University
2015-2025
Green Chemistry
2024
Sichuan University
2020-2024
Monash University
2024
Suzhou Research Institute
2024
Shanghai Research Institute of Building Sciences (China)
2014-2023
State Key Laboratory of Respiratory Disease
2019-2022
Guangzhou Medical University
2019-2022
First Affiliated Hospital of Guangzhou Medical University
2019-2022
Central University of Finance and Economics
2022
A carbene-catalyzed reaction between α-bromoenals and thioamides was developed. Key steps include enantioselective 1,4-addition of thioamide sulfur atoms to α,β-unsaturated acyl azolium intermediate. Subsequent intramolecular annulation eventually affords thiazinone heterocycles with high optical purities. The introduction Lewis acid additives such as Cu(OTf)2 this NHC catalytic could provide small but consistent improvements enantioselectivities.
This study developed and used a modified quick, easy, cheap, efficient, rugged safe (QuEChERS) method coupled with gas chromatography electron capture detection to determine eight pyrethroid pesticide residues in green, red dehydrated peppers. Pyrethroids were extracted acetonitrile, partitioned sodium chloride purified primary secondary amino graphitized carbon black hexane. The QuEChERS extraction conditions optimized, the matrix effects that might influence recoveries evaluated minimized...
A rapid and sensitive method for the simultaneous determination of difenoconazole propiconazole residues in banana matrices was established using GC-MS/MS. The average recovery rates from various ranged 76.7% to 94.9%. relative standard deviation between 0.9% 7.4%. effect adding organosilicon mineral oil adjuvants after being applied leaves examined. initial deposition amount 2 hours adjuvant treatment with 1.22-2.13 times higher than that water treatment. After two spray adjuvants,...
Chiral quaternary ammonium ion-pair organocatalysis has been widely used in the facile synthesis of chiral molecules with challenging stereocenters. Especially, numerous asymmetric nucleophilic addition reactions have facilitated this strategy. This review systematically summarizes additions promoted by salts past decade. The content is organized according to types electrophiles involved these catalytic transformations. Our own perspectives on future development within highly active research...
Abstract One‐pot synthesis of γ‐benzopyranones was realized in decent yields and excellent regioselectivities via iron‐catalyzed aerobic oxidation 4‐dimethylaminopyridine‐catalyzed cyclization related propargylic alcohols. Derivatizations to aromatic substituted naturally occurring 3′,4′‐dimethoxyflavone have also been realized. magnified image
Bamboo is a sustainable green material and has been gradually applied in the construction industry; however, little research on strengthening masonry structures with bamboo carried out. In this article, methods using were developed including grid reinforced cement mortar layer, externally bonded mats, additional confining horizontal concrete band beams, strips placed joints. Ten walls designed two reference walls. Experimental results showed that all can improve certain aspects of seismic...
Two enantiomers of glufosinate were separated under reverse-phase conditions on a chiral crown stationary phase (CROWNPAK CR(+)). An efficient and reliable analytical method was developed to determine the two metabolites in soil water samples using high-performance liquid chromatography-high-resolution mass spectrometry (HPLC-HRMS). The linearities matrix-matched calibration curves five four good with correlation coefficient R2 > 0.998, mean recoveries 85.2–100.4%, relative standard...