A5079487216- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Diamond and Carbon-based Materials Research
- Crystal Structures and Properties
- Catalytic C–H Functionalization Methods
- Geomagnetism and Paleomagnetism Studies
- Synthesis and Catalytic Reactions
- Advanced biosensing and bioanalysis techniques
- Oxidative Organic Chemistry Reactions
- Biosensors and Analytical Detection
- Radical Photochemical Reactions
- earthquake and tectonic studies
- Inorganic Fluorides and Related Compounds
- Thermal and Kinetic Analysis
- Electrochemical sensors and biosensors
- Astro and Planetary Science
- Geochemistry and Geologic Mapping
- Molecular Sensors and Ion Detection
- Arctic and Antarctic ice dynamics
- Pharmaceutical and Antibiotic Environmental Impacts
- Synthesis and Biological Evaluation
- Geological Studies and Exploration
- Carbon and Quantum Dots Applications
Shenzhen Institute of Information Technology
2025
China University of Geosciences
2018-2025
University of Hawaiʻi at Mānoa
2017-2025
China University of Petroleum, East China
2025
Southern Medical University Shenzhen Hospital
2025
Fuzhou University
2023-2024
Jiaxing University
2021-2023
Jiangxi University of Science and Technology
2019-2022
Ganzhou People's Hospital
2019-2021
Institute of Chemical Engineering
2021
Recent advances in nitrene chemistry from acyclic precursors are reviewed this paper.
In this work, by using<italic>N</italic>-methoxybenzamides as efficient acyl nitrene precursors, an iron-catalyzed nitrene/alkyne metalation-based chloramidation is reported for the synthesis of isoindol-5-ones.
In this work, the use of N-acyloxybenzamides as efficient acyl nitrene precursors under photoredox/iron dual catalysis is reported. The resulting nitrenes could be captured by various types C-H bonds and S- or P-containing molecules. Mechanism investigations suggested that formation from N-acyloxybenzamide occurs a photoredox process, it believed in redox process oxidative N-H bond cleavage prior to reductive N-O N-acyloxybenzamide.
In reversed-phase liquid chromatography, tetracycline antibiotics yield broad and asymmetrical peaks, as a result of their ionic interaction with the anionic free silanol groups metal ion present in silica-based stationary phases (commonly derivatized C18 groups). These frequently encountered difficulties were absolutely eliminated based on dual effect when methanesulfonic acid was employed an eluent additive. The study revealed that performance to minimize "silanol effect" is mainly...
In this work, by using<italic>N</italic>-methoxybenzamides as efficient acyl nitrene precursors, an iron-catalyzed nitrene/alkyne metalation is reported for the synthesis of pyrrolo[2,1-<italic>a</italic>]isoindol-5-ones.
A facile procedure is reported for the synthesis of various 2-bromo-1-phenyl-5,6-dihydro-3<italic>H</italic>,7<italic>aH</italic>-benzo[<italic>b</italic>]pyrrolo[2,1-<italic>c</italic>][1,4]oxazin-3-ones <italic>via</italic> a brominative spiro-tricyclization <italic>N</italic>-arylpropiolamides in presence TBAB and oxone.
This paper describes iron/photoredox dual-catalyzed acyl nitrene formation and the use of in constructing various C-O bonds towards phthalides. The developed reaction starts from N-methoxyl-2-alkylbenzamides. Mechanism surveys suggest involves iron nitrene-based hydrogen atom abstraction (HAA), radical-polar crossover O-nucleophilic SN1. Distinctively, often-reported radical rebound previous publications is not observed. represents first example on synthesis Moreover, it also serves as a...
Abstract Cable-guiding mechanisms (CGMs) and the stiffness characteristics directly influence dynamic features of cable-driven upper limb rehabilitation robot (PCUR), which will affect PCUR’s performance. This paper introduces a novel CGM design. Given precision movement stability considerations mechanism, an analytical model is developed. Using this model, we analyze error derive velocity acceleration mappings from moving platform to cables. Continuity cable trajectory tension rigorously...
Unilateral biportal endoscopic lumbar interbody fusion (UBE-LIF) has been successfully used to treat degenerative spinal diseases. Nevertheless, the duration of UBE-LIF procedure notably exceeds that minimally invasive transforaminal (Mis-TLIF), increasing potential for perioperative complications, particularly in elderly patients. This retrospective study aimed compare results robot assistance (RA) and non-assistance (NA) groups explore benefits assisted by a Tianji aged 60 patients were...
Superdeep diamonds and their syngenetic inclusions are crucial for understanding Earth’s deep carbon cycle slab–mantle redox dynamics. The origins of these diamonds, especially links to iron (Fe) carbides ferropericlase with varying Mg# [=Mg/(Mg+Fe)at], however, remain elusive. In this study, we performed high pressure–temperature (P-T) experiments (10–16 GPa 1200–1700 K) across cold-to-warm subduction zones using a multi-anvil press. results reveal stepwise Fe-mediated carbonate reduction...
Natural smithsonite (ZnCO3) has been investigated by synchrotron radiation X-ray diffraction and absorption spectroscopy combined with diamond anvil cells up to 50 GPa at room temperature. At ambient pressure, adopts as calcite phase a=4.6557(11) Å c=15.072(12) Å. Both experimental results demonstrate that no transition occurs in the present examined pressure range. Isothermal pressure–volume relationship of can be well described third-order Birch–Murnaghan equation state V0=284.6(7) Å3,...
We herein report a cascade reaction-based switch-on fluorescence sensor for Ce(iv) ions. The mechanism is based on the ability of ions to oxidize β-naphthol, which condenses with o-phenylenediamine generate fluorescent benzo[a]phenazine. achieved 200-fold enhancement and was successfully applied real sample detection.
Carbon has been suggested as one of the light elements existing in Earth's core. Under core conditions, iron carbide Fe7C3 is likely first phase to solidify from a Fe-C melt and thus considered potential component inner The crystal structure Fe7C3, however, still under debate, its thermoelastic properties are not well constrained at high pressures. In this study, we performed synchrotron-based single-crystal X-ray diffraction experiment using an externally heated diamond-anvil cell determine...
A CuI‐catalyzed direct coupling of aryl boronic acids with arylsulfonyl chlorides for the preparation diaryl thioethers was developed. The reaction is initiated by a PPh 3 reduction chloride, followed C–S an acid. Various can directly serve as sulfur source in this mild and efficient giving desired products moderate to good yields. Moreover, practical method has also been applied thioetherification iodides acetylacetones.
The externally-heated diamond anvil cell (EHDAC) can be used to generate simultaneously high-pressure and high-temperature conditions found in Earth's planetary interiors. Here we describe the design fabrication of EHDAC assemblies accessories, including ring resistive heaters, thermal electrical insulating layers, thermocouple placement, as well experimental protocol for preparing using these parts. routinely megabar pressures up 900 K temperatures open air, potentially higher ~1200 with a...