A5000778771- Catalytic C–H Functionalization Methods
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Rice Cultivation and Yield Improvement
- Asymmetric Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Chemical synthesis and alkaloids
- Cyclopropane Reaction Mechanisms
- Sulfur-Based Synthesis Techniques
- Synthesis and Catalytic Reactions
- Crop Yield and Soil Fertility
- Catalytic Cross-Coupling Reactions
- Catalytic Alkyne Reactions
- GABA and Rice Research
- Advanced Synthetic Organic Chemistry
- Alkaloids: synthesis and pharmacology
- Oxidative Organic Chemistry Reactions
- Asymmetric Hydrogenation and Catalysis
- Plant nutrient uptake and metabolism
- Plant responses to water stress
- Crystallography and molecular interactions
- Chemical Synthesis and Reactions
- Food composition and properties
- Traditional and Medicinal Uses of Annonaceae
- Agriculture, Soil, Plant Science
Lanzhou University
2016-2025
Chinese Academy of Sciences
2014-2025
Zhongda Hospital Southeast University
2009-2025
Midea Group (China)
2024
Dalian Polytechnic University
2023-2024
Dalian Institute of Chemical Physics
2023-2024
Southeast University
2024
Nanjing Tech University
2024
University of Chinese Academy of Sciences
2024
Guangdong Hydropower Planning & Design Institute
2024
Tandem jump: A novel copper-catalyzed tandem trifluoromethylation/semipinacol rearrangement reaction of allylic alcohols has been achieved under mild conditions. This is valuable for the difunctionalization alkenes through simultaneous construction a CCF3 bond and quaternary carbon center, could provide straightforward strategy preparation α-quaternary β-trifluoromethyl ketone derivatives. As service to our authors readers, this journal provides supporting information supplied by authors....
Forty-one 1,3,4-thiadiazolyl-containing thiazolidine-2,4-dione derivatives (MY1–41) were designed and synthesized as protein tyrosine phosphatase 1B (PTP1B) inhibitors with activity against diabetes mellitus (DM). All compounds presented potential PTP1B inhibitory activities, half-maximal concentration (IC50) values ranging from 0.41 ± 0.05 to 4.68 0.61 μM, compared that of the positive control lithocholic acid (IC50 = 9.62 0.14 μM). The most potent compound, MY17 μM), was a reversible,...
Low solar radiation caused by industrial development and dimming has become a limitation in crop production China. It is widely accepted that low influences many aspects of plant development, including slender, weak stems susceptibility to lodging. However, the underlying mechanisms are not well understood. To clarify how affects stem mechanical strength formation lodging resistance, japonica rice cultivars Wuyunjing23 (lodging-resistant) W3668 (lodging-susceptible) were grown under field...
Over the past few decades, semipinacol rearrangement has been widely applied in field of organic synthesis. However, its catalytic asymmetric version not caught much attention until beginning 21st century. Significant breakthroughs have made due to efforts chemists. These important progressions are summarized this paper.
Lodging in rice production often limits grain yield and quality by breaking or bending stems. Excessive nitrogen (N) fertilizer rates are the cause of poor lodging resistance rice, but little is known about effect top-dressing N application on mechanical strength japonica plants, especially how anatomical structure culms affected N. In this study, field experiments two varieties with three rates, 0 kg ha(-1) (LN), 135 (MN), 270 (HN) as urea, were conducted. Wuyunjing23, a lodging-resistant...
Spiro compounds: An organocatalytic asymmetric method for the CH functionalization of α position racemic cyclic ethers has been developed. The transformation, mediated by catalytic amounts an imidazolidinone and strong acid, involves a tandem 1,5-hydride transfer/cyclization provides access to structurally diverse series chiral spiroethers with high levels enantioselectivity (see scheme). Detailed facts importance specialist readers are published as ”Supporting Information”. Such documents...
A novel chiral spirocyclic amide (SPA)-derived triazolium organocatalyst has been designed and demonstrated to effect asymmetric homo- heterodialkylations of various bisoxindoles, enabling enantioselective construction vicinal all-carbon quaternary stereocenters. These reactions feature excellent enantio- diastereoselectivities (up 99% ee >20:1 dr) as well good high yields 89% over two steps). As an application this methodology, the first total synthesis (−)-chimonanthidine achieved.
A copper-catalyzed Markovnikov-type intermolecular azidocyanation of aryl alkenes has been developed for the first time.
A novel organocatalytic asymmetric tandem Nazarov cyclization/semipinacol rearrangement reaction using "unactivated" substrates has been developed, generating a series of chiral spiro[4.4]nonane-1,6-diones in up to 96% yield and 97% enantiomeric excess. Significantly, it is the first direct example for synthesis cyclopentanones with four stereocenters cyclization. DFT calculations have applied understand mechanism, stereochemistry, substituent effects.
The objective of this study was to determine the morphology mechanism nitrogen (N) fertilizer rates and ratio on lodging resistance through analying its effects among index (LI), lodging-related morphological traits physical strength in basal internodes by comparing japonica indica super rice cultivars. Field experiments, with three levels (0, 150 300 kg ha−1) two ratios topdressing (8:2 5:5) cultivars (Yliangyou 2 Wuyunjing 23), were conducted Baolin Farm, Danyang Country, Jiangsu Province,...