A5085147341- Molecular Sensors and Ion Detection
- Luminescence and Fluorescent Materials
- Sulfur Compounds in Biology
- Catalytic C–H Functionalization Methods
- Recommender Systems and Techniques
- Catalytic Cross-Coupling Reactions
- Nitric Oxide and Endothelin Effects
- Radical Photochemical Reactions
- Advanced Graph Neural Networks
- Synthesis and Catalytic Reactions
- Cassava research and cyanide
- Chemical Synthesis and Analysis
- Photochemistry and Electron Transfer Studies
- Synthesis and Biological Activity
- Synthesis and Reactions of Organic Compounds
- Advanced biosensing and bioanalysis techniques
- Advanced Bandit Algorithms Research
- Machine Learning in Healthcare
- Image Retrieval and Classification Techniques
- Click Chemistry and Applications
- Sulfur-Based Synthesis Techniques
- Synthesis and Biological Evaluation
Shenzhen University
2023-2024
Shanghai Institute of Technology
2018-2021
A colorimetric anion sensor based on the activated C-H group is described, and selective reusable detection of cyanide using demonstrated. The system uses bromine to block isomerization trifluoromethyl-directed regioselective functionalization for direct C-C bond formation between a fluorophore 2-(pyridin-2-yl)acetonitrile. Thus, this provides new way develop CH-based receptors.
A new efficient pyridine-hydrazone-substituted naphthalimide receptor 4a-E has been synthesized as a selective colorimetric and fluorescent chemosensor for cyanide sensing in aqueous environments through unique excited-state intramolecular proton transfer (ESIPT) mechanism. The addition of Br group to the fluorophore skeleton at ortho-position hydrazone generates reference compounds (4b-E 4c-Z). Interestingly, potential NHBr hydrogen bonding might compete with anion-induced intermolecular...
A fluorescent and colorimetric anion sensor based on the activated C–H group has been developed, its reusability ability to selectively detect cyanides have demonstrated.
A terminal alkyne-assisted protocol for the one-pot formation of a diverse range arylamidines from novel cascade reaction in situ generated nitrile oxides, sulfonyl azides, alkynes, and water by [3 + 2] cycloaddition ring opening sequence was developed. The use aryl oxime chlorides as carbon source amidine group addition proved to be critical reaction. Moreover, which can lead high yields products employing less amount, may play catalytic role broader substrates investigated.
A facile transition-metal-free protocol to form 2-iminoimidazo[1, 2-a]-pyridines bearing a -CHBr2 group and an aza-quaternary carbon center at the 3 position from N-(2-pyridyl)amidines substrates, in which new heterocyclic skeletons constructed amidines via radical reactions or nucleophilic substitution are promoted only by CBr4 under mild conditions, is demonstrated. The were realized intramolecular CDC reaction involving C-N C-C bond formation sequential C(sp3)-H bifunctionalization mode...
4-Hydroxy-fluoroborodipyrrole is used as fluorophore, and tert-butyldiphenylsilyl (TBDPS) protective group for active hydroxyl groups.A novel fluoroborodipyrrole type of fluoride ion fluorescent probe R based on fluorine causing cleavage Si-O bond to trigger cascade releasing was designed synthesized.Spectral experimental studies showed that after the interaction ion, a new absorption peak appeared at 605 nm in ultraviolet spectrum.The solution including changed from orange blue, maximum...
This paper discusses challenges in online doctor recommendation services, emphasizing personalized recommendations based on patients' health needs and preferences. We address issues related to information asymmetry time-related attributes of diseases (e.g., seasonal, recurring, long-term) by proposing the use knowledge graphs introducing temporal factor into KGAT approach scenario. construct using interaction data, extract heterogeneous auxiliary accurately assess user preferences, encode...
研究简报CuCl 2 催化"一锅法"合成 2-苄基-3,4-二氢异喹啉-1-酮类衍生物 付 超 樊彦霞 孙启辉 易维银 * 易封萍 (上海应用技术大学香料香精技术与工程 上海 201418) 摘要 成功开发了一种简便、有效地由铜催化"一锅法"合成 2-苄基-3,4-二氢异喹啉-1-酮类化合物的方法. 该方法以 四氢异喹啉、苄基叠氮、含取代基的苯甲醛为原料, 经过亲核加成并进一步氧化反应, 一锅法合成目标化合物, 且目标 化合物产率为 50%～70%.同时, 进一步探究了催化剂的种类、添加剂的种类、