A5040678337- Carbon dioxide utilization in catalysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- CO2 Reduction Techniques and Catalysts
- Asymmetric Hydrogenation and Catalysis
- Synthetic Organic Chemistry Methods
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Catalytic C–H Functionalization Methods
- Organometallic Complex Synthesis and Catalysis
- Catalytic Cross-Coupling Reactions
- Crystallography and molecular interactions
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Chemical Synthesis and Analysis
- Cancer-related molecular mechanisms research
- Chemical Synthesis and Reactions
- Advanced Combustion Engine Technologies
- Ionic liquids properties and applications
- biodegradable polymer synthesis and properties
- Industrial Gas Emission Control
- Chemistry and Chemical Engineering
- Supramolecular Chemistry and Complexes
- Synthesis and Characterization of Pyrroles
- Radical Photochemical Reactions
- Catalytic Alkyne Reactions
Beijing Drainage Group (China)
2025
Zhejiang Sci-Tech University
2025
China Southern Power Grid (China)
2023-2024
Dalian University
2014-2024
Dalian University of Technology
2014-2024
Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University
2021-2024
Wenzhou Medical University
2021-2024
Nanchang University
2020-2024
Tianjin University
2023-2024
Shanghai University of Engineering Science
2024
Thermal stability of CO2 adducts N-heterocyclic carbenes (NHCs) was studied by means in situ FTIR method with monitoring the ν(CO2) region infrared spectra under various conditions. 1,3-Bis(2,6-diisopropylphenyl)imidazolinium-2-carboxylate (SIPr-CO2) shows higher thermal compared 1,3-bis(2,6-diisopropylphenyl)imidazolium-2-carboxylate (IPr-CO2). The presence free can significantly inhibit decomposition NHC-CO2 adducts, while addition an epoxide such as propylene oxide has a negative effect...
N-Heterocyclic Olefin (NHO) with high electronegativity at the terminal carbon atom was found to show a strong tendency for CO2 sequestration, affording adduct (NHO-CO2). X-ray single crystal analysis revealed bent geometry of binding in NHO-CO2 adducts an O-C-O angle 127.7-129.9°, dependent on substitute groups N-heterocyclic ring. The length C(carboxylate)-C(NHO) bond is range 1.55-1.57 Å, significantly longer than that C(carboxylate)-C(NHC) (1.52-1.53 Å) previously reported NHC-CO2...
A series of phosphorus ylide (P-ylide) CO2 adducts were synthesized and first used as organocatalysts for transformation. Detailed studies on the cycloaddition reaction with terminal epoxides show that P-ylide are efficient metal-free halogen-free to mediate this under ambient conditions (25 °C, 1 atm CO2). More importantly, reactions proceeded a broad scope, high efficiency, good functional group tolerance corresponding cyclic carbonate products obtained in excellent yields (46–99%)....
A convenient approach to selectively prepare a wide range of functionalized propiolic acids was developed by AgI-catalyzed carboxylation terminal alkynes using carbon dioxide as carboxylative agent under ligand-free conditions.
N-Heterocyclic carbene (NHC) functionalized MCM-41 was synthesized by reacting 1,3-bis-(4-allyl-2,6-diisopropylphenyl) imidazolium chloride with using 3-mercaptopropyltrimethoxysilane as silane coupling agent, and its CO2 adduct (designated MCM-41-IPr-CO2) further the reaction CO2. In situdiffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) used to investigate reversible capture-release ability of MCM-41-NHC. MCM-41-IPr-CO2 proved be an efficient heterogeneous catalyst for...
Enantiopure metal-complex catalyzed asymmetric alternating copolymerization of CO2 and meso-epoxides is a powerful synthetic strategy for preparing optically active polycarbonates with main-chain chirality. The previous studies regarding chiral zinc catalysts provided amorphous moderate enantioselectivity, thus, developing highly stereoregular this enantioselective polymerization desirable. Herein, we report the synthesis isotactic poly(cyclohexene carbonate)s from meso-cyclohexene oxide...
A highly selective synthesis of a variety functionalized allylic 2-alkynoates was realized via the carboxylative coupling terminal alkynes, chlorides, and CO(2) catalyzed by N-heterocyclic carbene copper(I) complex (IPr)CuCl. The catalyst can be easily recovered without any loss in activity product selectivity.
Alkoxide-functionalized imidazolium betaines (AFIBs) functioned as organocatalysts for the coupling of CO<sub>2</sub> with propargylic alcohols to give valuable cyclic carbonates <italic>via</italic> AFIB-CO<sub>2</sub> adducts.
From the viewpoint of abundance, economy, non-toxicity, and renewability, CO2 is ideal C1 synthon in organic synthetic chemistry. Utilizing for chemical conversion to synthesize highly value-added fine chemicals great significance. Organic electrochemical synthesis that employs electrons as redox reagents achieve selective oxidation or reduction has attracted much attention past decades. In this review, recent advances carboxylations using from perspective will be summarized. We give an...
Various CO<sub>2</sub>, COS and CS<sub>2</sub> adducts of N-heterocyclic olefins (NHOs) were synthesized characterised by single crystal X-ray crystallography.
Abstract Highly selective and direct electroreductive ring‐opening carboxylation of epoxides with CO 2 in an undivided cell is reported. This reaction shows broad substrate scopes within styrene oxides under mild conditions, providing practical scalable access to important synthetic intermediate β ‐hydroxy acids. Mechanistic studies show that functions not only as a carboxylative reagent this but also promoter enable efficient chemoselective transformation additive‐free electrochemical...
Direct electrocarboxylation of various N-acylimines with atmospheric CO2 is achieved in an undivided cell under mild conditions, affording substituted α-amino acids yields 62–95%. This reaction conducted high efficiency using triethanolamine as external reductant nonsacrificial anode and can be facilely performed on gram scale. Preliminary mechanistic studies including cyclic voltammetry control experiments support N-radical carbanion the key intermediate.
A variety of arylboronic esters were efficiently carboxylated with CO2 using a simple AgOAc/PPh3 catalyst, affording the corresponding carboxylic acids in good yield. This and efficient silver(I) catalytic system showed wide functional group compatibility.
Carbon dioxide is a cheap, abundant and renewable C 1 feedstock.Methodology study on the transformation of carbon into highly value-added chemicals has become one most active topics in organic chemistry.Owing to diversity cyclization reaction vast occurrence various heterocyclic motifs biologically important molecules, reactions using have gained much attention.This review therefore aims principally describe recent progress new as feedstock synthesize lactams, lactones, cyclic anhydrides,...
Carboxylative cyclization of substituted 1-propenyl ketones <italic>via</italic> γ-carboxylation using CO<sub>2</sub> provides an efficient, straightforward, and transition-metal-free access to α-pyrone compounds.
Abstract Background Long non-coding RNAs (lncRNAs) regulate numerous biological processes, including adipogenesis. Research on adipogenesis will assist in the treatment of human metabolic diseases and improve meat quality livestock, such as content intramuscular fat (IMF). However, significance lncRNAs remains unclear. This research aimed to reveal transcriptomic profiles process bovine identify involved adipocytes. Results In this research, a landscape was identified with RNA-seq adipocytes...
Electrocarboxylation reaction, which employs organic electrosynthesis to achieve the utilization of CO2 as a carboxylative reagent, provides powerful and efficient tool for preparation carboxylic acid. In some electrocarboxylation reactions, also acts promoter facilitate desired reaction. This concept mainly highlights recent -promoted reactions via CO2⋅- intermediate or transiently protective carboxylation active with .
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTN-Heterocyclic Carbene Functionalized Polymer for Reversible Fixation−Release of CO2Hui Zhou, Wen-Zhen Zhang, Yi-Ming Wang, Jing-Ping Qu, and Xiao-Bing Lu*View Author Information State Key Laboratory Fine Chemicals, Dalian University Technology, 158 Zhongshan Road, 116012, China*Corresponding author. E-mail: [email protected]Cite this: Macromolecules 2009, 42, 15, 5419–5421Publication Date (Web):July 20,...