A5089328262- Catalytic C–H Functionalization Methods
- Chemical Synthesis and Reactions
- Oxidative Organic Chemistry Reactions
- Quinazolinone synthesis and applications
- Synthesis and Catalytic Reactions
- Vehicle Dynamics and Control Systems
- Molecular Sensors and Ion Detection
- Luminescence and Fluorescent Materials
- Sulfur-Based Synthesis Techniques
- Synthesis and Biological Evaluation
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Analytical Chemistry and Sensors
- Catalytic Cross-Coupling Reactions
- Hydraulic and Pneumatic Systems
- Phenothiazines and Benzothiazines Synthesis and Activities
- Advanced biosensing and bioanalysis techniques
- Multicomponent Synthesis of Heterocycles
- Chemical Synthesis and Analysis
- Asymmetric Hydrogenation and Catalysis
- Nanoplatforms for cancer theranostics
- Nanofabrication and Lithography Techniques
- Metal complexes synthesis and properties
- Traffic control and management
- Vibration and Dynamic Analysis
Beijing University of Civil Engineering and Architecture
2021-2024
Songshan Lake Materials Laboratory
2024
Yanshan University
2024
Shanxi Science and Technology Department
2023
Changchun University of Science and Technology
2020-2021
State Key Laboratory of Polymer Physics and Chemistry
2020-2021
Chinese Academy of Sciences
2020-2021
Changchun Institute of Applied Chemistry
2020-2021
Nanjing University
2004-2020
Beijing Institute of Technology
2014-2020
Herein a ratiometric fluorescent Cu(2+) probe was rationally constructed in straightforward manner with the concept of aldehyde group protection/deprotection. The showed response to large emission wavelength shift (>100 nm) and displayed high selectivity for over other metal ions due distinct deprotection conditions. In addition, Cu(2+)-promoted dethioacetalization mechanism proposed.
Abstract A novel palladium‐catalyzed CO‐gas‐ and autoclave‐free protocol for the synthesis of 11 H ‐pyrido[2,1‐ b ]quinazolin‐11‐ones has been developed. Quinazolinones, which are omnipresent motif in many pharmaceuticals agrochemicals, were prepared good yields by CH bond activation annulation using DMF as CO surrogate. 13 CO‐labelled control experiment demonstrated that gas was released from carbonyl with acid promotor. The kinetic isotope effect (KIE) value indicated step may not be...
Abstract Probe 1 has been synthesized as the first ratiometric fluorescent cobalt probe, and it exhibits several highly favorable features, in particular a remarkable fluorescence response at two wavelengths. Importantly, electronic energy transfer (EET) efficiency of probe is modulated by acceptor molar absorptivity variations on binding, which then transforms to large This signaling mechanism should open new avenue for development powerful probes with emission signal ratios wavelengths...
Abstract Bis(coumarinyl) Schiff base 1 was designed and synthesized as a fluorescence turn‐on chemodosimeter for Fe 3+ . The readily in four steps from 2,4‐dihydroxybenzaldehyde. addition of to induced about 140‐fold enhancement influorescence. Furthermore, also highly selective over other metal ions, most the related metals ions exhibited negligible detection interference.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Oxidation is one of the fundamental transformations in organic synthesis. The selective oxidation inert substrates interesting and important. In this review, transition metal‐catalyzed methylarenes discussed. Benzaldehyde, benzoic acid, benzyl alcohol, etc., were produced as target products. Copyright © 2014 John Wiley & Sons, Ltd.
Abstract Sensor 1 was developed as the first example of a fluorescence‐enhanced Al 3+ sensor with unique dual‐channel emissions. The addition to elicits large fluorescence enhancement by inhibition quenching Photoinduced electron‐transfer (PET) channel and also dramatic due promotion an emissive excimer formation. response contributes its high sensitivity selectivity.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
A general procedure for oxidation of both benzyl alcohols and alkyl to primary amides under catalyst free conditions has been developed. 34 examples were produced from their corresponding in moderate excellent yields. This is a practical synthesis; water tert-butanol are the only by-products. commercial drug, Piracetam, was prepared one step with 73% yield as well.
This paper proposes a coordinated chassis control (CCC) utilizing four-wheel differential braking, electronically controlled real-time drive (4WD) and active front steering (AFS), aiming to improve the driving performance handling stability during cornering. First, of single system is tested; then hierarchical-structure algorithm designed: supervisory controller monitor vehicle states determine desired yaw rate, upper-level decide longitudinal forces moment based on driver intention...
Abstract Herein a practical and efficient protocol for preparing range of aminoisoquinolines is reported. Various were prepared in moderate to good yields from the corresponding 2‐methylbenzonitriles benzonitriles upon treatment with potassium tert ‐butoxide. magnified image
Abstract A series of meso ‐coumarin‐conjugated porphyrins 1a – e were designed and synthesized. Condensation 4‐chloroacetoacetate ethyl ester with m ‐cresol or resorcin afforded 4‐chloromethylcoumarins, which then hydrolyzed to give coumarin alcohols, followed by oxidation provide aldehydes. The reaction aldehydes pyrrole under Adler Lindsey conditions the . Their UV/Vis absorption spectra photoluminescent recorded both in dilute THF solution as solid films. Analysis luminescence indicate...
An interesting and practical metal-free strategy has been developed for the synthesis of aromatic aldehydes using various <italic>N</italic>,<italic>N</italic>-dimethylbenzylamines as starting materials.
The first example of the zinc-catalyzed oxidation sulfides to sulfones has been developed. By using a catalytic amount zinc salt as catalyst, DBU ligand, various were produced in good yields with hydrogen peroxide terminal green oxidant.
An efficient, practical and green methodology for the synthesis of primary sulfonamides has been developed. Various types thiols can be applied as substrates desired obtained in good to excellent yields.
In this paper, a new approach for an observer based controller semi-active suspension systems is presented. The part feedback linearization Kalman filter which on differential geometry. original nonlinear system transferred to linear by certain coordinate transfer after the verification of observability and solvability design problem under sensor placement configurations. Then, algorithm can be applied linearized system. state information obtained through inverse estimation results filter....
Abstract Ultraviolet (UV) photodetectors have been fabricated on a graphene/4H‐SiC wafer. In this device, the electrical doping in graphene layer, under gate, is realized by changing gate voltage while optical layer outside region through photogenerated carrier injection from SiC, laser excitation at 325 nm. This kind of dual modulation and electric fields ultimately results formation planar n–p–n or n–n–n junction layer. The photoresponse demonstrate that formed negative voltage,...
An interesting base-promoted protocol for the synthesis of dibenzo[<italic>b</italic>,<italic>f</italic>][1,4]oxazepin-11-amines and quinazolinimines has been developed. Starting from commercially available 2-fluorobenzonitriles, 2-aminophenols 2-aminoethanol, good to excellent yields corresponding heterocycles can be achieved.