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Fluorination reaction
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In this study, a simple, straightforward, and highly efficient microwave-assisted three-component synthesis of novel 2-amino-4H-benzo[g]chromene-5,10-dione-3-carbonitrile derivatives bearing fluorine atoms has been developed using 1,4-diazabicyclo[2.2.2]octane (DABCO) as an ecofriendly catalyst, and acetonitrile as a solvent.
11p
viamancio
04-06-2024
1
0
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In this study, the gold nanoparticles (AuNPs) were synthesized via redox reaction, by using ethylene diamine tetra-acetic acid (EDTA) as a protecting and reducing agent, with tetrachloroauric acid (HAuCl4) as precursor and seed solution. The ultraviolet-visible spectroscopy (UV-Vis) method was utilized to investigated the reaction conditions (the EDTA:HAuCl4 ratio, the amount of seed solution and stirring solution time) at room temperature. The synthesized AuNPs were deposited on the surface of fluorine doped tin oxide (FTO) by electrophoresis deposition.
8p
dianmotminh02
03-05-2024
5
1
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Ebook "Organometallic fluorine chemistry (Topics in Organometallic chemistry, Volume 52)" introduction of fluorine into organic molecules, with reference to late stage fluorination methods. Second comes a comprehensive review by the LaBerge and Love on the selective introduction and manipulation of C–F bonds in aromatic systems using transition metal reagents.
247p
tudohanhtau1006
29-03-2024
2
1
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Antimony telluride (Sb2Te3) thin films were deposited on to non-and conductive-glass substrates ‒ borosilicate (BRS), indium-doped tin oxide (ITO), and fluorine-doped tin oxide (FTO) using the doctorblading technique as a white slurry precipitated from the solution during a chemical bath reaction.
9p
viberbers
09-08-2023
7
3
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This history of antimicrobials is marked with impressive discoveries, the majority of which have their origin in natural products. However in this work, the antimicrobial activity of β- nitrostyrenes and related compounds of synthetic origin is reviewed and investigated with a particular focus on the influence of fluorine functionality. Various fluorinated β-methyl-β-nitrostyrene compounds were prepared, their minimum inhibition concentration in cultures of Gram positive, Gram negative and a fungus and their lipophilicity was determined.
133p
runthenight05
01-03-2023
2
2
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The fluorination reaction is strongly influenced by the nature of the intrapore cation. Intrapore Brønsted acids facilitate fluorination of the framework by in situ ion-exchange, releasing the acidic ions to the zeolite surface.
11p
vironald
15-12-2022
4
2
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5-fluorocytosine is a pyrimidine and a fluorinated cytosine analog mainly used as an antifungal agent. It is a precursor of 5-fluorouracil, which possesses anticancer properties. To reduce systemic toxicity of 5-fluorouracil during chemotherapy, 5- fluorocytosine can be used as a targeted anticancer agent.
10p
vidarwin
23-02-2022
12
1
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Herein, titanium (Ti3+) self-doped strontium titanate (SrTiO3), so-called blue SrTiO3, with a bandgap of 2.6 eV and favorable photocatalytic characteristics was fabricated through a facile and effective method. For electrochemical investigations, the electrophoretic deposition was applied to produce SrTiO3 thin films on (fluorine-doped tin oxide) FTO conductive substrates. The electrophoretic voltage of 20V and a process duration of 10 min were optimized to reach transparent and uniform coatings on FTO. The blue SrTiO3 reveals lower resistance (charge transfer resistance of 6.
10p
tudichquannguyet
29-11-2021
3
1
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Twenty-two compounds in a series of 1-(benzo[ b ]thiophen-4-yl)-4-(2-(oxo, hydroxy, and fluoro)-2-phenylethyl) piperazine and 1-(benzo[d]isothiazole-3-yl)-4-(2-(oxo, hydroxy, and fluoro)-2-phenylethyl)-piperazine derivatives were synthesized through nucleophilic substitution reaction of phenacyl bromides with hetero arylpiperazine, reduction, and then fluorination. Compound K2 showed potent activity against gram-negative bacterial stain P. aeruginosa with minimum inhibitory concentration (MIC) value of 12.5 µg/mL.
50p
tudichquannguyet
29-11-2021
10
1
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The fluorination of perlite granules and the immobilization of ZnO nanoparticles on the perlite surface were carried out at the same time by a simple impregnation method to create new highly photocatalytic materials which are easily separated from reaction solutions after treatment. The influence of perlite fluorination on the crystal structure, morphology, UVvisible absorption, and surface functional groups of ZnO, as well as on the ZnO content on perlite, was respectively characterized by XRD, FE-SEM, UV-Visible diffuse reflectance, FTIR and atomic absorption spectrometry.
7p
caygaocaolon1
13-11-2019
22
2
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HIV-1 protease is a pivotal enzyme in the later stages of the viral life cycle which is responsible for the processing and maturation of the virus particle into an infectious virion. As such,HIV-1proteasehasbecomean important target for the treatment ofAIDS, and efficient drugs have beendeveloped. However, negative side effects and fast emerging resistance to the current drugs have necessitated the development of novel chemical entities in order to exploit different phar-macokinetic properties as well as new interaction patterns....
9p
awards
05-04-2013
31
1
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