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Synthesis of azo pyridone dyes [PDF]

open access: yesHemijska Industrija, 2011
Over 50% of all colorants which are used nowdays are azo dyes and pigments, and among them arylazo pyridone dyes (and pigments) have became of interest in last several decades due to the high molar extinction coefficient, and the medium to high light ...
Mijin Dušan Ž.   +3 more
doaj   +2 more sources

Bis(μ-1,4-dihydropyridin-4-one-κ2O:O)di-μ-perchlorato-κ4O:O′-bis[aqua(1,4-dihydropyridin-4-one-κO)copper(II)] tetraaquabis(1,4-dihydropyridin-4-one-κO)copper(II) tetrakis(perchlorate) 1,4-dihydropyridin-4-one disolvate [PDF]

open access: yesIUCrData
The reaction of copper(II) perchlorate hexahydrate with 4-pyridone and pyrazine in 1-propanol serendipitously yielded crystals of the solvated title double salt, [Cu(C5H5NO)2(H2O)4][Cu2(ClO4)2(C5H5NO)4(H2O)2](ClO4)4·2C5H5NO, as a biproduct.
Mark M. Turnbull   +2 more
doaj   +2 more sources

Azo-hydrazone tautomerism of aryl azo pyridone dyes [PDF]

open access: yesHemijska Industrija, 2013
In the last three or four decades disperse dyes derived from pyridones (in particular azo pyridone dyes) have gained in importance, and are widely used in various fields.
Mirković Jelena M.   +3 more
doaj   +3 more sources

Genome mining guided identification of new furo[3,2-c]pyridones phaeopyridones A–C from the endophytic fungus Phaeobotryon negundinis 12020 [PDF]

open access: yesNatural Products and Bioprospecting
Three pairs of new furo[3,2-c]pyridone derivative racemates, named (±)-phaeopyridones A–C (1–3), together with two new compounds, berkeleyamide E (4), and phaeopyranone (5), were isolated from the endophytic fungus Phaeobotryon negundinis 12020, along ...
Ke Ye   +15 more
doaj   +2 more sources

Targeting cancer cell mitochondria with a multivalent source of singlet oxygen [PDF]

open access: yesSmart Molecules
Naphthalene, anthracene and pyridone endoperoxides are known to thermally release singlet oxygen. However, in the cycloreversion reaction, singlet oxygen is produced stoichiometrically; therefore, multiple singlet oxygen releasing modules are expected to
Wanwan Wang   +4 more
doaj   +2 more sources

Pyridone alkaloids from an Antarctic endolichenic Tolypocladium sp. [PDF]

open access: yesNatural Products and Bioprospecting
Three new pyridone alkaloids, tolypyrone A (1), tolypyrosides A (2) and B (3), and a new tetramic acid 2′-epitolypoalbin (4), along with ten known compounds, were obtained from Tolypocladium sp.
Shasha Li   +7 more
doaj   +2 more sources

Synthesis and characterization of Cu and Fe (1:2) metal complexes based on their substituted pyridones acid dyes and their application on wool fabrics [PDF]

open access: yesJournal of Chemistry Letters, 2022
In this study, the investigation deals with synthesis of acid dyes from 4-amino-1-(4-sulfophenyl)- 3-methyl-5-pyrazolone and their pyridone derivatives and their metal complexes (Cu (II)and Fe (II)).
Olamide Ajani   +2 more
doaj   +1 more source

Crystal structure of 4-(naphthalen-2-yl)-2-oxo-6-phenyl-1,2-dihydropyridine-3-carbonitrile

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
The synthesis and crystal structure of the title compound, C22H14N2O, are described. The title compound was synthesized by a three-component one-pot reaction in DMSO involving chalcone, cyanoacetamide and elemental sulfur as catalyst.
Thai Thanh Thu Bui   +3 more
doaj   +1 more source

Optimization of electrochemical decolorization of certain arylazo pyridone dyes [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
Electrocatalytic decolorization of the arylazo pyridone dyes has been investigated in the presence of sodium chloride using DSA Ti/PtOx electrode in the diluted sodium hydroxide.
Mirković Jelena M.   +4 more
doaj   +1 more source

A microwave approach to the synthesis of certain 4-substituted phenyl-6-phenyl-3-cyano-2-pyridones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
A study of the synthesis of 4-substituted phenyl-6-phenyl-3-cyano-2-pyridones from 2-cyano-3-phenylsubstituted acrylates and acetophenone is presented. 2-Pyridones were obtained using conventional as well as microwave synthesis using solvent and
Marinković Aleksandar   +4 more
doaj   +1 more source

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