Articles with "diazonium" as a keyword



Synthesis and properties of 5-aryl-3-diazo-3H-pyrazoles and 3-aryl-1H-pyrazole-5-diazonium salts. Preparation and cytolytic activity studies of 2-arylpyrazolo-[5,1-c][1,2,4]benzotriazines

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Published in 2018 at "Chemistry of Heterocyclic Compounds"

DOI: 10.1007/s10593-019-02406-8

Abstract: A comparative analysis of physicochemical properties and reactivity of 3-aryl-1H-pyrazole-5-diazonium tetrafluoroborates and 5-aryl-3-diazo-3H-pyrazoles in azo coupling reactions is presented. It is shown that diazonium salts have higher reactivity compared to the respective 3-diazopyrazoles, which is… read more here.

Keywords: pyrazole diazonium; diazo pyrazoles; aryl pyrazole; diazonium ... See more keywords
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Highly enhancing the interfacial strength of CF/PEEK composites by introducing PAIK onto diazonium functionalized carbon fibers

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Published in 2020 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2020.145400

Abstract: Abstract The weak interfacial adhesion between carbon fibers (CFs) and poly(ether ether ketone) (PEEK) strongly hinders the true potential of composites in high performance applications. Herein, a novel heterocyclic derivative of PEEK was utilized as… read more here.

Keywords: strength; paik; cfs; diazonium ... See more keywords
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Evaluation of diazonium gold(III) salts in forensic chemistry: Latent fingerprint development on metal surfaces

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Published in 2019 at "Forensic Chemistry"

DOI: 10.1016/j.forc.2019.100144

Abstract: Abstract Evaluation of diazonium salts in forensic chemistry will vastly benefit in the design of novel developers for latent fingerprints on metal surfaces used as crime tools. We used the easily reducible aryldiazonium salt stabilized… read more here.

Keywords: metal surfaces; forensic chemistry; diazonium; chemistry ... See more keywords
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Alternative method for the synthesis of triazenes from aryl diazonium salts

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Published in 2021 at "Tetrahedron"

DOI: 10.1016/j.tet.2021.132185

Abstract: Abstract An alternative mild method for access to 1-aryl-3,3-dimethyl alkyl triazenes is described. This protocol employs the dropwise addition of a methanolic solution of a carboxylate (RCO2M) or carbonate (CO32-) to a gently heated DMF… read more here.

Keywords: method synthesis; aryl diazonium; diazonium; alternative method ... See more keywords
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The first stable examples of compounds containing both diazonium and acyl azide, and synthesis of a new pyrazino[2′,3′:3,4]pyrazolo[5,1-c][1,2,4]triazin-4(6H)-one heterocyclic system

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Published in 2017 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2017.03.083

Abstract: Abstract The first stable compound containing both N 2 + BF 4 − and CON 3 functional groups – 8-azidocarbonyl-3-( tert -butyl)-4-oxo-4,6-dihydropyrazolo[5,1- c ][1,2,4]triazine-7-diazonium tetrafluoroborate was synthesized, and its stability and reactivity discussed. The Curtius… read more here.

Keywords: diazonium; pyrazino pyrazolo; heterocyclic system; triazin one ... See more keywords
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Renaissance of Sandmeyer-Type Reactions: Conversion of Aromatic C-N Bonds into C-X Bonds (X = B, Sn, P, or CF3).

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Published in 2018 at "Accounts of chemical research"

DOI: 10.1021/acs.accounts.7b00566

Abstract: The Sandmeyer reaction represents an important organic transformation that converts an arylamine to an aryl halide using Cu(I) halide via a diazonium salt intermediate. The reaction was first reported by Sandmeyer in 1884, and a… read more here.

Keywords: chemistry; sandmeyer type; reaction; diazonium ... See more keywords
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Tuning the Chemical and Mechanical Properties of Conductive MoS2 Thin Films by Surface Modification with Aryl Diazonium Salts

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Published in 2022 at "Langmuir"

DOI: 10.1021/acs.langmuir.1c03061

Abstract: Molybdenum disulfide (MoS2) is a promising material for applications in sensors, energy storage, energy conversion devices, solar cells, and fuel cells. Because many of those applications require conductive materials, we recently developed a method for… read more here.

Keywords: modification; conductive mos2; spectroscopy; diazonium ... See more keywords
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Enhanced Direct Electron Transfer of Fructose Dehydrogenase Rationally Immobilized on a 2-Aminoanthracene Diazonium Cation Grafted Single-Walled Carbon Nanotube Based Electrode

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Published in 2018 at "ACS Catalysis"

DOI: 10.1021/acscatal.8b02729

Abstract: In this paper, an efficient direct electron transfer (DET) reaction was achieved between fructose dehydrogenase (FDH) and a glassy-carbon electrode (GCE) upon which anthracene-modified single-walled carbon nanotubes were deposited. The SWCNTs were activated in situ… read more here.

Keywords: direct electron; diazonium; carbon; electron transfer ... See more keywords

Plasmon-Induced Nanolocalized Reduction of Diazonium Salts

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Published in 2017 at "ACS Omega"

DOI: 10.1021/acsomega.7b00394

Abstract: Surface grafting from diazonium solutions triggered by localized surface plasmon has been investigated. An organic layer that is 20–30 nm thick is easily grafted onto gold nanoparticles (AuNPs) by visible-light illumination in a few minutes… read more here.

Keywords: diazonium salts; nanolocalized reduction; reduction diazonium; diazonium ... See more keywords
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Biosynthesis of Tasikamides via Pathway Coupling and Diazonium-Mediated Hydrazone Formation.

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Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c10369

Abstract: Naturally occurring hydrazones are rare despite the ubiquitous usage of synthetic hydrazones in the preparation of organic compounds and functional materials. In this study, we discovered a family of novel microbial metabolites (tasikamides) that share… read more here.

Keywords: biosynthesis; biosynthesis tasikamides; tasikamides via; diazonium ... See more keywords
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Impact of covalent functionalization by diazonium chemistry on the electronic properties of graphene on SiC.

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Published in 2020 at "Nanoscale"

DOI: 10.1039/d0nr01186j

Abstract: Plenty of strategies focused on covalent interaction have been developed to functionalize graphene's surface in order to employ it in a wide range of applications. Among them, the use of radical species including nitrene, carbene… read more here.

Keywords: covalent functionalization; diazonium chemistry; chemistry; electronic properties ... See more keywords