Browsing Τμήμα Χημείας / Department of Chemistry by Type "Article"
Αποτελέσματα 1-20 από 1226
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1,2,3-Dithiazole chemistry in heterocyclic synthesis
(2006)The chemistry of various 5H-1,2,3-dithiazoles is investigated with emphasis on assisted ring opening and ring closure reactions leading to new heterocycles. Thus on treatment with catalytic tetraalkylammonium iodide ...
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1,2,6-Thiadiazinones as Novel Narrow Spectrum Calcium/Calmodulin-Dependent Protein Kinase Kinase 2 (CaMKK2) Inhibitors
(2018)We demonstrate for the first time that 4H-1,2,6-thiadiazin-4-one (TDZ) can function as a chemotype for the design of ATP-competitive kinase inhibitors. Using insights from a co-crystal structure of a 3,5-bis(arylamino)-4 ...
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1,3-diphenylbenzo[e][1,2,4]triazin-7(1H)-one: Selected chemistry at the C-6, C-7 and C-8 positions
(2011)1,3-Diphenylbenzo[e][1,2,4]triazin-7(1H)-one (6) reacts with tetracyanoethylene (TCNE) or tetracyanoethylene oxide (TCNEO) to give the deep green 2-[1,3-diphenylbenzo[e][1,2,4]triazin-7(1H)-ylidene]propanedinitrile (11) ...
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A 1-D coordination polymer based on a Mn40 octagonal super-structure
(2013)A 1-D coordination polymer, constructed using a combination of diols and phenolic oximes, contains a novel [Mn9] sub-unit, a nanosized [Mn40] octagonal super-structure and a [Mn21] repeating unit. © 2013 The Royal Society ...
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1-D coordination polymers consisting of a high-spin Mn17 octahedral unit
(2009)The reaction of [Mn(O2CMe)2] · 4H2O with pdH2 (1,3-propanediol) or mpdH2 (2-methyl-1,3-propanediol) in the presence of NaN3 in MeCN/py (py = pyridine) results in the formation of two new one-dimensional coordination polymers ...
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2-(2,3,4,5,6-Pentafluorophenyl)-1H-benzo[d]imidazole, a fluorine-rich building block for the preparation of conjugated polymer donors for organic solar cell applications
(2012)We have introduced the pentafluorophenyl substituted benzimidazole as a building block of conjugated polymers for optoelectronic applications. We present the synthesis of a copolymer bearing fluorene as the comonomer. A ...
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2-(Pyridin-2-yl)ethanol as a protecting group for carboxylic acids: Chemical and thermal cleavage, and conversion of poly[2-(pyridin-2-yl)ethyl methacrylate] to poly(methacrylic acid)
(2012)In this communication, we show that 2-(pyridin-2-yl)ethanol is a good protecting group for methacrylic acid (MAA), which can be selectively removed, after polymerization, either chemically under alkaline conditions or ...
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2-Dimensional rare earth metal-organic frameworks based on a hexanuclear secondary building unit as efficient detectors for vapours of nitroaromatics and volatile organic compounds
(Royal Society of Chemistry, 2022-06-10)The synthesis, characterisation and capability to selectively detect vapours of volatile organic compounds (VOCs) and nitroaromatic explosives of a new family of 2-dimensional rare earth (RE) MOFs based on a hexanuclear ...
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2-hydroxybenzophenone-controlled self-assembly of enneanuclear lanthanide(III) hydroxo coordination clusters with an “hourglass”-like topology
(2017)Enneanuclear lanthanide(III) hydroxo coordination clusters with an “hourglass”- or “sandglass”-like topology have been synthesized via 2-hydroxybenzophenone-controlled hydrolysis of the metal ions in ethanol
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3,4,5,6,7,8,9-heptachlorophenaleno[1,9-bc]pyrazole
(2009)Treatment of perchloro-7H-cyclopropano[a]acenaphthylene 1 with hydrazine hydrate in DMF at ca. 80 °C gives the new 3,4,5,6,7,8,9-heptachlorophenaleno[1,9-bc]pyrazole 2 in 69% yield. This compound is the first example of a ...
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3,4,5-Triarylisothiazoles via C-C coupling chemistry
(2007)The regiocontrolled preparation of triarylisothiazoles is presented. 3-Halo-5-phenylisothiazole-4-carbonitriles, 1 (hal = Cl) and 18 (hal = I), are converted into the corresponding 4-bromo derivatives 5 (3-hal = Cl) and ...
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3,5-bis(4-dodecylthiophen-2-yl)-4H-1,2,6-thiadiazin-4-one
(2012)3,5-Dichloro-4H-1,2,6-thiadiazin-4-one 1 reacts with (4-dodecylthiophen-2-yl)trimethylstannane 4 (2.2 equiv.) and Pd(Ph 3P) 2Cl 2 (5 mol%) in acetonitrile at ca. 82 °C to give 3,5-bis(4-dodecylthiophen-2-yl)-4H-1,2,6-thi ...
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3,5-Bis[5-(thiazol-2-yl)thien-2-yl]-4H-1,2,6-thiadiazin-4-one
(2019)Stille coupling of 3,5-bis(5-bromothien-2-yl)-4H-1,2,6-thiadiazin-4-one (10) with 2-(tri-n-butylstannyl)thiazole and Pd(Ph3P)2Cl2 in PhMe, at ca. 110 °
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3-amino-6-ethoxy-4-phenyl-1H-pyrrolo[2,3-b]pyridine-2,5-dicarbonitrile
(2010)(Z)-2-(4-Chloro-5H-1,2,3-dithiazol-5-ylideneamino)-6-ethoxy-4-phenylpyridine- 3,5-dicarbonitrile 1, when treated with either triphenylphosphine (4 equiv.) or polymer bound triphenylphosphine (5 equiv.) in dichloromethane ...
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3-Chloro-5-(3-n-hexylthien-2-yl)-4H-1,2,6-thiadiazin-4-one
(2019)Stille coupling of 5-chloro-4-oxo-4H-1,2,6-thiadiazin-3-yl trifluoromethanesulfonate (7) with tributyl(3-n-hexylthien-2-yl)stannane and Pd(Ph3P)2Cl2 in PhMe at ca. 20 °C, for 24 h gave 3-chloro-5-(3-n-hexylthien-2-yl)-4H ...
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3-Chloro-5-(4-dodecylthiophen-2-yl)-4H-1,2,6-thiadiazin-4-one
(2012)3-Chloro-5-trifluoromethanesulfonate-4H-1,2,6-thiadiazin-4-one 3 reacts with (4-dodecylthiophen-2-yl)trimethylstannane 5 (1 equiv.) in the presence of Pd(Ph 3P) 2Cl 2 (5 mol%) in benzene at ca. 20 °C for 5 h to give ...
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3D Composite U(VI) Adsorbents Based on Alginate Hydrogels and Oxidized Biochar Obtained from Luffa cylindrica
(MDPI, 2023)3D naturally derived composites consisting of calcium alginate hydrogels (CA) and oxidized biochar obtained from Luffa cylindrica (ox-LC) were synthesized and further evaluated as adsorbents for the removal of U(VI) from ...
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[4 + 2] Cycloadditions of rigid s-cis dienes to C60. A synchronous Diels-Alder reaction
(2001)(Matrix presented) The Diels-Alder reaction of rigid s-cis dienes with C60 occurs by a concerted mechanism, via a symmetrical transition state.
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4-(Hydroxymethyl)pyridine and pyrimidine in manganese benzoate chemistry: Preparation and characterization of hexanuclear clusters featuring the { Mn4II Mn2III ( μ4 - O )2 }10 + core
(2006)The use of 4-(hydroxymethyl)pyridine (4hmpH) and pyrimidine (pym) in manganese benzoate chemistry has been investigated. The reactions of 4hmpH and pym with Mn(O2CPh)2 · 2H2O in MeCN affords the complexes [Mn6O2(O2CPh)10(4hmpH) ...