A5101763981- Catalytic C–H Functionalization Methods
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Radical Photochemical Reactions
- Sulfur-Based Synthesis Techniques
- Synthetic Organic Chemistry Methods
- Catalytic Cross-Coupling Reactions
- Fluorine in Organic Chemistry
- Oxidative Organic Chemistry Reactions
- Molecular Sensors and Ion Detection
- Cyclopropane Reaction Mechanisms
- Trace Elements in Health
- Advanced biosensing and bioanalysis techniques
- Synthesis of Organic Compounds
- Synthesis and biological activity
- Advanced SAR Imaging Techniques
- Organic and Inorganic Chemical Reactions
- Chemical Synthesis and Reactions
- Advanced Synthetic Organic Chemistry
- Luminescence and Fluorescent Materials
- Ultrasonics and Acoustic Wave Propagation
- Metal-Organic Frameworks: Synthesis and Applications
- Synthesis and Catalytic Reactions
- Organometallic Complex Synthesis and Catalysis
- Carbon dioxide utilization in catalysis
- Multicomponent Synthesis of Heterocycles
Baoji University of Arts and Sciences
2020-2024
National University of Defense Technology
2024
Southern University of Science and Technology
2020-2021
Fuzhou University
2016-2018
East China University of Science and Technology
2011-2013
Abstract We report an efficient oxidative radical desulfur‐fragmentation and reconstruction of enol triflates for the synthesis α‐CF 3 ketones. Preliminary mechanistic studies disclosed that fragmentation to release a CF from triflyl group triflate subsequent addition another form desired This method provides new approach ketones, featuring utilization catalytic amount oxidants, broad substrate scope, potential control regioselectivity.
The development of enantioconvergent cross-coupling racemic alkyl halides directly with heteroarene C(sp2 )-H bonds has been impeded by the use a base at elevated temperature that leads to racemization. We herein report copper(I)/cinchona-alkaloid-derived N,N,P-ligand catalytic system enables oxidative addition bromides under mild conditions. Thus, coupling azole achieved in high enantioselectivity, affording number potentially useful α-chiral alkylated azoles, such as 1,3,4-oxadiazoles,...
We disclose herein a photocatalytic difluoroalkylation and cyclization cascade reaction of N-(but-2-enoyl)indoles with broad substrate scopes in up to 90% isolated yield. This method provides sustainable efficient access synthesize difluoroalkylated pyrrolo[1,2-a]indoles quaternary carbon center under mild conditions.
We developed a photoinduced radical fragmentation and rearrangement of vinyl tosylates that enables efficient formation β-ketosulfones.
Born to be useful: an unprecedented<italic>in situ</italic>SO<sub>2</sub>-capture cascade triggered by alkyl radicals has been documented herein.
A photocatalytic transformation of vinyl fluorosulfates to aromatic β-keto sulfonyl fluorides is developed using 1 mol% Ir catalyst irradiated by 3 W blue LEDs. This methodology provides an efficient and readily scalable approach fluorides.
Closing the circle: A versatile and modular method yields various saturated unsaturated N-heterocyclic carbene precursors from a Tf2O-mediated intramolecular cyclization reaction. resultant sterically demanding oxazolium salt could be used not only as good intermediate for directly preparing N,N′-disubstituted imidazolium salts in one step, but also precursor of oxazol-2-ylidene. As service to our authors readers, this journal provides supporting information supplied by authors. Such...
A versatile and modular method for the preparation of various backbone-substituted, functionalized chiral imidazolinium salts from reaction formamidines with alkene oxides has been described, providing a more straightforward access to substituted than previously reported methods.
The design and synthesis of various new six-membered cyclic formamidinium salts with a 3,4-dihydroquinazoline core have been reported in this paper. Our synthetic strategy allows access to kind tailor-made 3,4-dihydroquinazolinium bearing different substituent combinations. A series novel 3,4-dihydroquinazolin-2-ylidene-based rhodium(I) complexes were prepared by the reaction [Rh(cod)Cl]2 free carbene obtained situ from deprotonation corresponding KN(SiMe3)2. NHCs can also react S8 or CS2...
A series of new 2,3,5-triaryl-substituted oxazolium and thiazolium salts are readily prepared by a Tf2O-mediated intramolecular cyclisation their use as precursors for the synthesis novel oxazol-4-ylidene thiazol-4-ylidene rhodium complexes has been developed.
We have found a Tf2O-mediated intramolecular cyclization reaction and revealed an intriguing stereoselectivity regioselectivity during the preparation of intermediate alcohols, which allow for tailor-made synthesis various backbone-substituted imidazolinium salts, structurally specific syn-4,5-disubstituted salts.
Abstract We report an efficient oxidative radical desulfur‐fragmentation and reconstruction of enol triflates for the synthesis α‐CF 3 ketones. Preliminary mechanistic studies disclosed that fragmentation to release a CF from triflyl group triflate subsequent addition another form desired This method provides new approach ketones, featuring utilization catalytic amount oxidants, broad substrate scope, potential control regioselectivity.
An efficient one pot three-component Strecker reaction for the green synthesis of α-aminonitriles from carbonyl compounds, amines and trimethylsilyl cyanide (TMSCN) in presence a catalytic amount humic acid catalyst under solvent-free conditions at room temperature has been developed.This methodology advantages high yield, no need metal catalysts, short time, mild conditions, simple operation, reusable catalyst.
Abstract The development of enantioconvergent cross‐coupling racemic alkyl halides directly with heteroarene C(sp 2 )−H bonds has been impeded by the use a base at elevated temperature that leads to racemization. We herein report copper(I)/cinchona‐alkaloid‐derived N , P ‐ligand catalytic system enables oxidative addition bromides under mild conditions. Thus, coupling azole achieved in high enantioselectivity, affording number potentially useful α‐chiral alkylated azoles, such as...
Fluorescent turn-on receptors are extensively employed for the detection of Zn ions contamination in environment due to its simplicity, convenience and portability. However, developing highly sensitive cell-imageable fluorescent probe recognition living organisms remains a significant challenge. Herein, we have successfully synthesized novel Schiff base (H2L) with fluorescence response (Zn ions) by one-step synthetic method. In this work, H2L exhibited high sensitivity Zn2+ upon interaction...
A series of [2×2] Square Grids shaped lanthanide complexes Nd4L4(1), Pr4L4(2) and Eu4L4(3) with a Schiff base ligand have been synthesized well characterized by single crystal X-ray diffraction analysis, infrared spectrum (IR), powder diffractometry (PXRD), elemental analysis (EA) thermal gravimetric (TGA). These display highly stability which could be used as catalysts for the chemical fixation CO2 into cyclic carbonates. The catalytic results revealed that all them exhibit excellent...
Nowadays, deep learning techniques are extensively applied in the field of automatic target recognition (ATR) for radar images. However, existing data-driven approaches frequently ignore prior knowledge target, leading to a lack interpretability and poor performance trained models. To address this issue, we first integrate structural attributes into training process an ATR model, providing both category information at dataset level. Specifically, propose Structural Attribute Injection (SAI)...
Abstract The new and efficient copper‐catalyzed intramolecular carbochlorination employs aryl amines as starting materials aqueous HCl, providing a facile access to relevant 3‐chloromethyl‐2,3‐dihydrobenzofuran derivatives.
Abstract A facile and versatile method for the synthesis of title N‐heterocyclic carbenes including ones which are not accessible by using previously published methods, e.g. (XIII), is presented.
Abstract In the course of investigations stereoselective formation syn‐isomer (X) and regioselective alkylation amidine (XI) at sterically less hindered N‐substituent is observed.