A5103040713- Asymmetric Hydrogenation and Catalysis
- Asymmetric Synthesis and Catalysis
- Catalytic C–H Functionalization Methods
- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Organoboron and organosilicon chemistry
- Computational Drug Discovery Methods
- Synthesis and characterization of novel inorganic/organometallic compounds
- Machine Learning in Materials Science
- Organometallic Complex Synthesis and Catalysis
- Chemical Reactions and Isotopes
- Catalytic Cross-Coupling Reactions
- Ionic liquids properties and applications
- Epigenetics and DNA Methylation
- Power Transformer Diagnostics and Insulation
- Magnetic Properties and Applications
- Smart Materials for Construction
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced Sensor and Control Systems
- Polyoxometalates: Synthesis and Applications
- Viral Infectious Diseases and Gene Expression in Insects
- Catalytic Processes in Materials Science
- Advanced Graph Neural Networks
- Metal-Organic Frameworks: Synthesis and Applications
- Axial and Atropisomeric Chirality Synthesis
Chinese Academy of Sciences
2022-2023
Peking University
2023
Shanghai Institute of Organic Chemistry
2020-2022
Baise University
2022
University of Chinese Academy of Sciences
2021
Central China Normal University
2015-2018
Xi'an Shiyou University
2012-2013
Wuzhou University
2013
Changsha University
2010
A general and efficient Pd/sulfoxide-phosphine complex-catalyzed direct asymmetric N-allylic alkylation of indoles has been developed to allow for the preparation various N-allylated in generally good yields with excellent enantioselectivities. This catalytic system could also be extended other N-containing heterocycles results.
A palladium-catalyzed deuterated formylation of aryl sulfonium salts is prepared conveniently from readily available arenes, which enables the expedient synthesis a series structurally diverse C-1 aldehydes with 96%-99% deuterium incorporation. The easy to handle and cost-effective DCOONa provides source, can be introduced onto formyl units excellent selectivity under palladium-catalytic redox neutral conditions. This catalytic route accomplish direct late-stage C-H functionalization...
A general and efficient Pd/phosphoramidite thioether complex-catalyzed asymmetric N-allylic alkylation of hydrazones with allylic acetates has been developed for the first time. The reaction allows preparation various valuable N-substituted generally good yields excellent enantioselectivities. Minor structural modification ligand resulted in opposite enantiomers, enabling enantiodivergent synthesis products by same catalytic system.
The first isolation and structural characterization of a rare-earth metal-terminal imido complex were reported in 2010, but phosphinidene is still absent, to date. Herein, we report the synthesis structure example rare-earth-terminal complex, namely scandium boronylphosphinidene complex. Single-crystal X-ray diffraction shows that has much shorter Sc–P bond length as compared related boronylphosphido 2.381(1) Å vs 2.564(1) Å. DFT calculations indicate presence strong π interaction this which...
Abstract M=E/M≡E multiple bonds (M = transition metal, E main group element) are of significant fundamental scientific importance and have widespread applications. Expanding the ranges M represents grand challenges for synthetic chemists will bring new horizons chemistry. There been reports majority metals, even some actinide metals. In stark contrast, as largest subgroup in periodic table, rare-earth metals (Ln) were scarcely involved Ln=E/Ln≡E bonds. Until recently, there a few examples...
Open AccessCCS ChemistryRESEARCH ARTICLE3 Oct 2022Hydrogenation of Alkenes Catalyzed by Rare-Earth Metal Phosphinophosphinidene Complexes: 1,2-Addition/Elimination Versus σ-Bond Metathesis Mechanism Bin Feng, Hao-Yu Zhang, Hongling Qin, Qian Peng, Xuebing Leng and Yaofeng Chen Feng State Key Laboratory Organometallic Chemistry, Shanghai Institute Organic University Chinese Academy Sciences, 200032 , Zhang Elemento-Organic Chemistry Frontiers Science Center for New Matter, College Nankai...
The ligand field greatly affects the redox properties of cerium. Herein, cerium(III) and cerium(IV) complexes supported by imidazolin-2-iminato ligands were synthesized structurally characterized, their electrochemical investigated. Silylamine elimination amide Ce{N(SiMe3 )2 }3 with imidazolin-2-imine ImR NH (R=Mes, tBu, iPr) provided complexes, [(ImMes N)(ImMes NH)Ce{N(SiMe3 }2 ] (1), [(ImtBu N)2 (ImtBu }] (2) [(ImiPr (ImiPr NH)Ce(μ-ImiPr N)]2 (4) in 71-85% yields. These successfully...
There are very important relations between transverse magnetic leakage and the ampere-turn balance for power transformer, which also enormously influence axial short-circuit electromagnetic force acting on transformer windings dynamic stability. In this paper, a novel method of distribution is presented, annealing algorithm used to optimize distributions ampere-turns. The model 110 kV taken as an example calculating. Results show that, after optimization, unbalanced smaller than former....
Abstract An efficient and scalable N‐allylic alkylation of variously substituted indole derivatives other N‐heterocycles using diaryl aryl alkyl propenylacetates is described which generally proceeds with high yields enantioselectivities.
Abstract A hybrid P,S—ligand is designed by combining a chiral β‐amino sulfide and diphenyl phosphite.
Corrosion perforation of air cooler on atmospheric tower in refinery is mainly caused by the outer wall pitting, and leading factors which results failure are Cl-, PH , temperature Na+. With orthogonal model design test program to main factors, through polarization curves experiments obtain corresponding corrosion potential, rate, pitting potential. Analysis change value, Temperature Na+ condenser influence. The show that, Cl- concentration, concentration rise make happening easily; value...
Plasma catalysis has been regarded as a promising technology for the removal of diluted volatile organic compounds (VOCs). In this study, hybrid process dielectric barrier discharge (DBD) was performed in VOC degradation using MCeZr/TiO2 (M = Cu, Mn, Ni, and Co) catalysts. Compared to plasma only system, plasma-catalytic system significantly enhanced conversion toluene CO2 selectivity, which can be attributed synergistic effects thermal on degradation. The performance follows sequence...
On condition that the surface of 304 stainless steel has formed passive film, we have done research on impact change concentration Cl- and Na+, temperature, pH properties. This experiment is preceded studied with electrochemical method. The results show along increase improves repairing capacity film steel. However, its stability decreases. Meantime, pitting corrosion will happen become easier, when been weakened because increases.