A5101980751- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Catalytic Alkyne Reactions
- Cyclopropane Reaction Mechanisms
- Electrocatalysts for Energy Conversion
- Fluorine in Organic Chemistry
- Fuel Cells and Related Materials
- Catalytic C–H Functionalization Methods
- Tropical and Extratropical Cyclones Research
- Catalysis and Hydrodesulfurization Studies
- Earthquake Detection and Analysis
- Catalytic Cross-Coupling Reactions
- Cyclization and Aryne Chemistry
- Oceanographic and Atmospheric Processes
- Robotic Path Planning Algorithms
- Molecular Junctions and Nanostructures
- Systemic Lupus Erythematosus Research
- Conducting polymers and applications
- ECG Monitoring and Analysis
- Radiomics and Machine Learning in Medical Imaging
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Robotics and Sensor-Based Localization
- Complement system in diseases
- Big Data Technologies and Applications
The University of Tokyo
2024
Bunkyo University
2024
Northeastern University
2023-2024
East China Normal University
2018-2023
Universidad del Noreste
2023
Affiliated Hospital of Qingdao University
2022
Qingdao University
2022
Heilongjiang Earthquake Agency
2022
Shenzhen University
2021
State Council of the People's Republic of China
2016-2017
Abstract Regiodivergent syntheses of indolo[3,2‐ c ]coumarins and benzofuro[3,2‐ ]quinolinones through a controllable palladium(II)‐catalyzed carbonylative cyclization are established. The chemo‐ regioselectivity exclusively tuned by the ligand on palladium catalyst. rigid framework electron‐deficient promotes O‐attack/N‐carbonylation leading to ]quinolinones, while sterically bulky electron‐rich facilitates N‐attack/O‐carbonylation generate ]coumarins. Furthermore, various other...
With Et3N·3HF as the fluorinating reagent, a copper(I)- or silver(I)-catalyzed β/α-site-regiocontrolled trans-hydrofluorination of alkynamides has been achieved, affording corresponding fluoro enamides in moderate to nearly quantitative yields with high regio- and stereoselectivity, respectively. The reaction proceeds under mild conditions exhibits good functional group tolerance. Further, deuterium-labeling experiment confirmed existence alkenylcopper intermediate.
A reasonable obstacle avoidance method for AUV 3D path planning is difficult. Existing methods have certain drawbacks. For example, they are only applicable to 2D planar applications and cannot effectively handle dynamic obstacles. To address these problems, this study designs an collision prediction model (CPM). Based on the results of simulation operation inertial motion, safety navigation evaluated improve sensitivity Then, learning ability sequence sample data enhanced by combining it...
Experimental results indicate that the regioselectivity of reaction is unexpectedly opposite to observed in (Ph<sub>3</sub>P)<sub>3</sub>CuF-catalyzed hydrofluorination ynamides, and resulting α-fluoro products allowed for synthesis imides through further transformations.
A mild and efficient methodology involving Pd(PPh3)4-catalyzed intramolecular cyclization of N-alkynyl alkyloxycarbamates with CuCl2 or CuBr2 for the synthesis 4-halo-oxazolones was developed. This reaction exhibiting good functional tolerance provided a new, efficient, rapid synthetic process to 4-halo-oxazolones. The resulting can serve as great potential precursors 3,4,5-trisubstituted oxazolones via Pd-catalyzed cross-coupling reaction.
The Rh(I)-catalyzed cascade formation of carbenoid followed by a carbonylative cyclization silyl diynes has been established to achieve diverse ortho silyl-substituted phenolics, enabling access fully substituted aryne precursors via one-step fluorosulfurylation. mask on the termini alkynes is demonstrated not only suppress undesired oxidation but also control selectivity CO insertion. Straightforward arynes was comprehensively and applied for efficient construction polycyclic aromatic molecules.
Objective This study aimed to investigate the efficacy and safety of belimumab for treating children with refractory childhood-onset systemic lupus erythematosus (cSLE). Methods Twenty-six cSLE patients who received treatment in our hospital from January 2020 September 2021 (23 them more than 52 weeks) were enrolled this study. Their clinical laboratory data, assessment disease activity, glucocorticoid dosage, treatment-emergent adverse events (TEAEs) retrieved analysis. The paired samples...
A Rh(I)-catalyzed carbene migration/carbonylation/cyclization (MCC) strategy has been established for the construction of diverse functionalized carbazoles from propargyl α-diazoindolacetates. Rh(I)-stabilized with different electrophilic properties displays specific reactivity toward alkyne and CO during transformation, ensuring smooth progress tandem cyclization. Other heteroaryl scaffolds were achieved simultaneously through this cascade protocol, thus offering a straightforward pathway...
A highly regio- and stereoselective <italic>trans</italic>-iodofluorination of <italic>N</italic>-(1-alkynyl)amides with NIS Et<sub>3</sub>N·3HF was achieved, affording (<italic>E</italic>)-α-fluoro-β-iodoenamides in moderate to excellent yields.
Abstract Regiodivergent syntheses of indolo[3,2‐ c ]coumarins and benzofuro[3,2‐ ]quinolinones through a controllable palladium(II)‐catalyzed carbonylative cyclization are established. The chemo‐ regioselectivity exclusively tuned by the ligand on palladium catalyst. rigid framework electron‐deficient promotes O‐attack/N‐carbonylation leading to ]quinolinones, while sterically bulky electron‐rich facilitates N‐attack/O‐carbonylation generate ]coumarins. Furthermore, various other...
The mesoscale eddy characteristics of the Mozambique Warm Current were investigated by detecting and tracking satellite altimetry data from 2010 to 2019. A total 1,086 eddies identified in Channel, comprising 509 cyclonic 577 anticyclonic eddies. results revealed that bay area on northwest coast Madagascar was main hotspot generation, mean amplitude radius Channel 24.23 cm 82.7 km, respectively, which are larger than those Local wind forcing had a significant impact formation Channel. In...
Nanodiamond (ND) has strong chemical stability, the initial oxidation temperature of ND is above 500 °C. A variety oxygen-containing functional groups are adsorbed on surface ND, which makes certain conductivity. Then can be used as highly stable catalyst or ideal support material. This paper reviews properties, functionalization and electrochemical applications ND. In this review, catalytic activity stability diamond-based catalysts further improved by appropriately functionalizing research...
Abstract This paper uses the observation data set of interaction among atmosphere, ocean, and organisms caused by global mesoscale eddy chlorophyll-a in tertiary sea surface (OC-CCI 5.0 version) to make month-on-month year-on-year statistical analysis on life cycle, movement trajectory generation number eddies North Indian Ocean (5°N-30°N, 45°E-100°E) from 2009 2019. It also summarizes spatiotemporal variation characteristics chlorophyll concentration inside this area makes a brief...
Abstract The trans‐hydrofluorination of various ynamides such as oxazolidinonyl‐, imidazolyl‐, and N‐sulfonyl affords (Z)‐α‐fluoroenamides in moderate to excellent yields.
Abstract Copper(I)‐ or silver(I)‐catalyzed trans‐hydrofluorination of ynamides is achieved for the first time.