A5028679022- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Fluorine in Organic Chemistry
- Asymmetric Synthesis and Catalysis
- Synthesis and Catalytic Reactions
- Synthetic Organic Chemistry Methods
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Synthesis of Indole Derivatives
- Financial Markets and Investment Strategies
- Advanced Chemical Physics Studies
- Eicosanoids and Hypertension Pharmacology
- Organic and Inorganic Chemical Reactions
- Carbohydrate Chemistry and Synthesis
- Organometallic Complex Synthesis and Catalysis
- Risk and Portfolio Optimization
- Financial Risk and Volatility Modeling
- Chemical Synthesis and Analysis
- Supercapacitor Materials and Fabrication
- Crystallography and molecular interactions
- Sulfur-Based Synthesis Techniques
- Synthesis and Reactions of Organic Compounds
- Adenosine and Purinergic Signaling
- Drug Transport and Resistance Mechanisms
University of Fribourg
2020-2022
Dalian Medical University
2022
Emory University
2022
First Affiliated Hospital of Dalian Medical University
2022
Lanzhou University
2016-2021
Fribourg Development Agency
2020
Ningbo Institute of Industrial Technology
2017-2018
Chinese Academy of Sciences
2017-2018
Battery Park
2018
Lanzhou City University
2017
This review concerning transition-metal-oxides-based electrocatalysts for the oxygen reduction reaction in metal–air batteries will encourage enthusiasm of researchers to develop efficient catalysts power sources used electric vehicles.
A Michael-aldol reaction of 2-mercaptobenzaldehyde with β-indole-β-CF3 enones catalyzed by a squaramide has been realized. The method affords series 2-CF3-2-indole-substituted thiochromanes featuring CF3-containing quaternary stereocenter in excellent yields, diastereoselectivities, and enantioselectivities.
The β-isocupreidine, a cinchonine derived alkaloid, catalyzed asymmetric SN2′–SN2′ reaction between N-2,2,2-trifluoroethylisatin ketimines and MBH type carbonates was realized in simple efficient way. A series of chiral α-trifluoromethylamines were prepared with excellent yields stereoselectivities. subsequent easy process deprotection gave γ-trifluoromethyl-α-methylenelactam stereoselective manner.
The development of the efficient and economical catalysts for oxygen reduction reaction (ORR) is an important issue commercialization metal-air batteries. Herein, a silver-doped δ-MnO2 dispersed on carbon powder (Ag-MnO2/C) was synthesized by facile route. specific surface area Ag-MnO2/C more than three times higher that MnO2/C. Moreover, shows much catalytic activity toward ORR MnO2/C or Ag/C. half-wave potential positive compared with 20% Pt/C. also exhibits excellent long-term stability...
An organocatalytic asymmetric method for the synthesis of 2-CF3 tetrahydroquinoline has been achieved. The cascade reaction 2-aminochalcones with β-CF3 nitroalkenes afforded products bearing three contiguous stereogenic centers in good yields excellent diastereoselectivities and enantioselectivities.
The optically active α-trifluoromethyl pyrrolidines have been achieved through organocatalyzed 1,3-dipolar cycloaddition reaction first. With diphenylprolinol trimethylsilyl ether as catalyst and in the presence of 3,5-dinitrobenzoic acid, trifluoroethylamine-derived ketimine with 2-enals gave bearing three contiguous stereogenic centers excellent diastereoselectivies, stereoselectivities, yields.
Mono-telechelic polymers and triblock copolymers were synthesized by catalytic living ROMP with unstabilized 14e<sup>−</sup><bold>HG2</bold> catalyst.
A new type of tricyclic oxanorbornene monomer was developed for living ring-opening metathesis polymerization (ROMP). methyl group located at the endoposition bicycle resulted in kinetics orders magnitude slower than corresponding hydrogen-substituted monomers because steric effects. Both showed well-controlled molecular weights and excellent dispersities with Grubbs' third-generation catalyst. The endomethyl substituted could even be polymerized a manner using second-generation...
An amino-controlled regiodivergent asymmetric synthesis of CF3-containing spiro-pyrrolidine-pyrazolone compounds is described. With alkaloid-derived squaramide as catalyst, the 1,3-dipolar cycloaddition α,β-unsaturated pyrazolone with diethyl 2-((2,2,2-trifluoroethyl)imino) malonate offered adducts in excellent yields, dr, and ee. While cyclohexanediamine-derived was employed, reaction afforded a series structure isomers through switched umpolung reaction.
This article investigates the criteria that individual investors should consider within Sharpe Ratio perspective. Based on risk, return, and correlation, this research used Excel program to find optimal portfolio efficient frontier which offer highest expected return for a defined level of risk or lowest given return. Among historical real data 16 assets, study found contains assets has correlation risk/return ratio. With finding, can pick combination domestic international stocks from...