A5101649958- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Synthesis and Biological Evaluation
- Synthesis and Catalytic Reactions
- Catalytic C–H Functionalization Methods
- Sulfur-Based Synthesis Techniques
- Cyclopropane Reaction Mechanisms
- Synthesis and Reactions of Organic Compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Click Chemistry and Applications
- Molecular Sensors and Ion Detection
- Asymmetric Synthesis and Catalysis
- Crystallography and molecular interactions
- Organic Chemistry Cycloaddition Reactions
- Chemical Synthesis and Analysis
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Fluorine in Organic Chemistry
- Phenothiazines and Benzothiazines Synthesis and Activities
- Synthesis and Reactivity of Heterocycles
- Chemical Reactions and Mechanisms
- Advanced Biosensing Techniques and Applications
- Chemistry and Chemical Engineering
- Multicomponent Synthesis of Heterocycles
- Quinazolinone synthesis and applications
- Mechanical and Optical Resonators
North University of China
2019
Beijing University of Technology
2016-2017
Southwest Jiaotong University
2010
A water-stable metal–organic framework exhibits multiresponsive fluorescence sensing for Fe(<sc>iii</sc>), Cr(<sc>iii</sc>/<sc>vi</sc>), and Mn(<sc>vii</sc>) ions the organochlorine pesticide 2,6-Dich-4-NA in aqueous solution.
Two novel metal–organic frameworks exhibited excellent CO<sub>2</sub> selective absorption and multiresponsive fluorescent sensing for Fe<sup>3+</sup>, CrO<sub>4</sub><sup>2−</sup>/Cr<sub>2</sub>O<sub>7</sub><sup>2−</sup> the pesticide 2,6-Dich-4-nitroaniline.
Abstract Catalyzed by a Cinchona ‐based thiourea, the [3+2] cycloadditions of barbiturate‐based olefins with 3‐isothiocyanatooxindoles proceeded readily, and furnished dispirobarbiturates in excellent chemical yields diastereo‐ enantioselectivities. The absolute configuration was firmly confirmed an X‐ray single crystal structure analysis. A reaction mechanism proposed to account for enantioselective formation dispirobarbiturates. magnified image
Construction of novel 1,2,4-oxadiazinan-5-ones <italic>via</italic> [3 + 3] cycloaddition <italic>in situ</italic> generated azaoxyallyl cations with nitrones.
In the presence of CuI, 1,3-dipolar cycloadditions N,N′-cyclic azomethine imines with iminooxindoles proceeded readily and furnished novel oxindole spiro-N,N-bicyclic heterocycles in moderate to excellent chemical yields diastereoselectivities.
Abstract In the presence of sodium carbonate, [4+3] cycloadditions α‐halogeno hydrazones with nitrones were performed efficiently, and affording 2,3,4,7‐tetrahydro‐1,2,4,5‐oxatriazepines in moderate to high yields. magnified image
In the presence of Na 2 CO 3 , [3+2] cycloaddition azaoxyallyl cations, in situ formed from α‐halohydroxamates by reaction with isothiocyanides, proceeded smoothly and furnished ( Z )‐2‐iminothiazolidin‐4‐ones 25–99 % chemical yields. The structure title compounds was confirmed X‐ray single‐crystal analysis.
Promoted by Et<sub>3</sub>N, the 1,3-dipolar [3 + 3] cycloaddition of α-halohydroxamate-based azaoxyallylcations with hydrazonoyl chloride-derived nitrile imines occurred efficiently, and furnished desired products in acceptable chemical yields.
Construction of non-aromatic 1,2,3,6-tetrahydro-1,2,3,4-tetrazines through [4 + 2] cycloaddition α-halogeno hydrazones with azodicarboxylic acid derivatives.
In the presence of TMSCl, [3 + 2] cycloaddition oxazol-5-(4H)-ones with nitrones proceeded smoothly and furnished desired isoxazolidin-5-ones high diastereoselectivities in reasonable chemical yields. The structure title compounds was firmly confirmed by X-ray single-crystal analysis.
In the presence of sodium carbonate, [4 + 2] cycloaddition α-halogeno hydrazones to imines proceeded readily, and furnished 2,3,4,5-tetrahydro-1,2,4-triazines in moderate high chemical yields.
The tandem cycloadditions of cyclic <italic>N</italic>-sulfonylimines with in situ generated Huisgen 1,4-dipoles underwent readily, and delivered 1,2,3,4-tetrahydropyrimidine-fused benzosultams acceptable chemical yields excellent diastereoselectivities.
In the presence of DIPEA (diisopropylethylamine), a formal [3+2] cycloaddition reaction between diazooxindoles and oxazol‐5‐(4 H )‐ones takes place easily to give new 3‐(1 ‐1,2,4‐triazol‐1‐yl)indolin‐2‐ones in 61–98 % yield. The structure target molecules was confirmed by single‐crystal X‐ray analysis.
Catalyzed by 10 mol-% PhCO2H, the [3+2] cycloaddition between 3-isothiocyanato oxindoles and nitroso compounds proceeded readily to deliver 1,2,4-oxadiazolidine-3-thione-fused spirooxindoles in 40–82 % yield. The structures of title were firmly confirmed X-ray single-crystal structure analysis.
Abstract 30 examples