Results 71 to 80 of about 8,502 (208)

Supramolecular Potential of Vanadium β-Diketonate and Picolinate Compounds and The First One-dimensional Oxidovanadium(IV) Complex with β-Diketonate Ligand

Acta Chimica Slovenica, 2014
Three vanadium compounds with β-diketonato or picolinato ligands were prepared and structurally characterized. In compounds [VO(tfpb)2]∞ (1) (tfpb = 4,4,4-trifluoro-1-phenylbutane-1,3-dionate) and [VO(acac)2(2-pyridone)] (2) the coordination of vanadium ...
Tanja Koleša Dobravc, Anton Meden, Franc Perdih   +2 more
doaj   +1 more source

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

Chemistry – A European Journal, Volume 32, Issue 29, 7 August 2026.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez, Robby Büchner, Mattis Fondell, Albert M. Brouwer   +3 more
wiley   +1 more source

Facile synthesis and cytotoxicity of substituted uracil-1'(N)-acetic acid and 4-pyridone-1'(N)-acetic acid esters of 20(S)-camptothecins

A series of novel substituted uracil-1'(N)-acetic acid esters (5–9) and 4-pyridone-1'(N)-acetic acid esters (10–11) of 20(S)-camptothecins (CPTs) have been synthesized by the acylation method.
Di-Zao Li (17955359), Zhao-Di Fu (17955362), Hong-Yan Liu (6290597), Xian-Dao Pan (17955365)   +3 more
core   +1 more source

Charting the synthetic frontier of pyridone based pharmacophoric hybrids

Discover Chemistry
Pyridones and their derivatives are highly valued in drug discovery due to their marked pharmacological relevance in the pharmaceutical industry. Extensive research efforts towards these compounds have showcased their broad therapeutic potential.
Oluwatosin Audu, Olusola Ifedolapo Watti, Natasha October   +2 more
doaj   +1 more source

Dipole moment studies of some derivatives of 4-pyridone

, 1972
The dipole moments of 13 derivatives of 4-pyridone were measured. Attempts to obtain a value for 4-pyridone were unsuccessful but a value of 6.O D is compatible with other evidence. Dipole moment and n.m.r, evidence indicated that for N-phenyl-4-pyridone
BD Batts, AJ Madeley
core   +1 more source

Crystal structures of three hydrogen-bonded 1:2 compounds of chloranilic acid with 2-pyridone, 3-hydroxypyridine and 4-hyroxypyridine

Acta Crystallographica Section E: Crystallographic Communications, 2017
The crystal structures of the 1:2 compounds of chloranilic acid (systematic name: 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone) with 2-pyridone, 3-hydroxypyridine and 4-hyroxypyridine, namely, bis(2-pyridone) chloranilic acid, 2C5H5NO·C6H2Cl2O4, (I), bis ...
Kazuma Gotoh, Hiroyuki Ishida
doaj   +1 more source

Solid-State Supramolecular Assembly of Salicylic Acid and 2-Pyridone, 3-Hydroxypyridine or 4-Pyridone [PDF]

, 2017
Mechanochemical milling of equimolar mixtures of salicylic acid with three hydroxy derivatives of pyridine provided three new phases. With 2-hydroxypyridine, which is in fact present as 2-pyridone, a discrete cocrystal supramolecular assembly is formed ...
Halasz, Ivan, Barišić, Dajana, di Michiel, Marco, Krunoslav Užarević, Tireli, Martina, Tomislav Stolar, Užarević, Krunoslav, Marco di Michiel, Martina Tireli, Dajana Barišić, Ivan Halasz, Stolar, Tomislav, Stipe Lukin, Lukin, Stipe   +13 more
core   +1 more source

Palladium-Catalyzed β-C(sp³)–H Bond Arylation of Tertiary Aldehydes Facilitated by 2-Pyridone Ligands

Molecules
2-Pyridone ligand-facilitated palladium-catalyzed direct C–H bond functionalization via the transient directing group strategy has become an attractive topic.
Ziting Xu, Zhi Li, Chong Liu, Ke Yang, Haibo Ge   +4 more
doaj   +1 more source

3-Cyano-4,6-dimethyl-2-pyridone (Guareschi pyridone)

Acta Crystallographica Section E Structure Reports Online, 2004
In the crystal structure of the title compound, C8H8N2O, the mol­ecules form centrosymmetric dimers via N—H⋯O hydrogen bonds.
Victor B. Rybakov, Alexander A. Bush, Eugene V. Babaev, Leonid A. Aslanov   +3 more
openaire   +1 more source

Synthesis, structure and solvatochromic properties of some novel 5-arylazo-6-hydroxy-4-phenyl-3-cyano-2-pyridone dyes

Chemistry Central Journal, 2012
Background A series of some novel arylazo pyridone dyes was synthesized from the corresponding diazonium salt and 6-hydroxy-4-phenyl-3-cyano-2-pyridone using a classical reaction for the synthesis of the azo compounds.
Alimmari Adel, Mijin Dušan, Vukićević Radovan, Božić Bojan, Valentić Nataša, Vitnik Vesna, Vitnik Željko, Ušćumlić Gordana   +7 more
doaj   +1 more source