A5061217084- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Carbon dioxide utilization in catalysis
- Organometallic Complex Synthesis and Catalysis
- Catalytic C–H Functionalization Methods
- Axial and Atropisomeric Chirality Synthesis
- Organoboron and organosilicon chemistry
- biodegradable polymer synthesis and properties
- Bioenergy crop production and management
- Molecular spectroscopy and chirality
- Soil Carbon and Nitrogen Dynamics
- Synthesis and characterization of novel inorganic/organometallic compounds
- Silkworms and Sericulture Research
- Forest, Soil, and Plant Ecology in China
- CO2 Reduction Techniques and Catalysts
- Catalysis for Biomass Conversion
- Insect behavior and control techniques
- Plant Physiology and Cultivation Studies
- Pasture and Agricultural Systems
- Catalysis and Oxidation Reactions
- Luminescence and Fluorescent Materials
- Advanced Polymer Synthesis and Characterization
- Forest Insect Ecology and Management
- Asymmetric Hydrogenation and Catalysis
- Biological Control of Invasive Species
Zhejiang University
2021-2024
Jiangxi Agricultural University
2024
Institute of Soil Science
2005
The copolymerization of carbon dioxide (CO2) and epoxides to produce aliphatic polycarbonates is a burgeoning technology for the large-scale utilization CO2 degradable polymeric materials. Even with wealth advancements achieved over past 50 years on this green technology, many challenges remain, including use metal-containing catalysts polymerization, removal chromatic metal residue after limited practicable epoxides, especially those containing electron-withdrawing groups. Herein, we...
We present herein our experimental and DFT computational studies on the directing ability of chalcogenoether motifs in Pd-catalyzed atroposelective C-H functionalization. The thioether motif was found to be a superior group compared corresponding ether selenoether terms reactivity enantiocontrol. Remarkably, calculation provided predictive model for optimization reaction conditions interpretation origin enantioselectivity. Both enantioselective olefination allylation reactions were...
Open AccessCCS ChemistryRESEARCH ARTICLE1 Dec 2021Merging C–H and C–C Activation in Pd(II)-Catalyzed Enantioselective Synthesis of Axially Chiral Biaryls Hao-Ming Chen†, Gang Liao†, Cheng-Kai Xu, Qi-Jun Yao, Shuo Zhang Bing-Feng Shi Chen† Department Chemistry, Zhejiang University, Hangzhou 310027 School Biotechnology Health Sciences, Wuyi Jiangmen 529020 , Liao† Xu Yao *Corresponding author: E-mail Address: [email protected] https://doi.org/10.31635/ccschem.021.202000695 SectionsSupplemental...
Quaternary ammonium and phosphonium borane bifunctional catalysts have shown high catalytic performance in ring-opening polymerization (ROP) of epoxides to produce polyether. Herein, we systematically investigate a series well-defined organoboron by varying the electronic steric properties Lewis acidic boron (B) centers, manipulating hindrance on cation (N+), adjusting distance between B N+, regulating nucleic number catalysts. The investigation dinuclear indicated that reactivity given...
Comprehensive Summary Synthesis of diverse polythioimidocarbonates via ring‐opening copolymerization epoxides and isothiocyanates catalyzed by organoboron catalyst was reported herein. Both aromatic aliphatic underwent successful with terminal internal epoxides, allowing for the precise tuning performance resultant copolymers over a broad range. The wide scope available enables direct construction sulfur‐containing functional polymers featuring both high glass transition temperature...
This work reported that a silicon-centered alkyl borane/ammonium salt binary (two-component) catalyst exhibits much higher activity than its bifunctional analogue (one-component) for the ring-opening polymerization of propylene oxide, showing 7.3 times at low loading 0.01 mol %, and even 15.3 an extremely 0.002 %. By using 19 F NMR spectroscopy, control experiments, theoretical calculation we discovered central silicon atom displays appropriate electron density larger intramolecular cavity,...
Abstract We present herein our experimental and DFT computational studies on the directing ability of chalcogenoether motifs in Pd‐catalyzed atroposelective C−H functionalization. The thioether motif was found to be a superior group compared corresponding ether selenoether terms reactivity enantiocontrol. Remarkably, calculation provided predictive model for optimization reaction conditions interpretation origin enantioselectivity. Both enantioselective olefination allylation reactions were...
ABSTRACT Concentration of sulfur (S) in mulberry leaves was 1.44 ∼ 2.67 g kg−1 (Mean ± SE = 2.03 0.30 kg−1) the six provinces Jiangxi, Anhui, Hubai, Hunan, Jiangsu, and Fujian, China. S influenced significantly by concentration available soils gardens (R 2 0.1773**, n 52). Sulfur leaves, cocoon shells, silkworm pupae, excrement high-yielding higher than that low-yielding gardens. The curvilinear correlation between shells significant 0.2101*, 26, a < 0).
Abstract This work reported that a silicon‐centered alkyl borane/ammonium salt binary (two‐component) catalyst exhibits much higher activity than its bifunctional analogue (one‐component) for the ring‐opening polymerization of propylene oxide, showing 7.3 times at low loading 0.01 mol %, and even 15.3 an extremely 0.002 %. By using 19 F NMR spectroscopy, control experiments, theoretical calculation we discovered central silicon atom displays appropriate electron density larger intramolecular...