Results 21 to 30 of about 7,227 (222)

Manganese(II) β-Diketonate Complexes with Pyridin-4-one, 3-Hydroxypyridin-2-one and 1-Fluoropyridine Ligands: Molecular Structures and Hydrogen-bonded Networks

open access: yesActa Chimica Slovenica, 2021
Manganese(II) bis(4,4,4-trifluoro-1-phenylbutane-1,3-dionate) complexes with pyridin-4-one (pyon), 3-hydroxypyridin-2-one (hpyon), 1-fluoropyridine (pyF) and methanol were prepared and the solid-state structures were determined by single-crystal X-ray ...
Anže Čavić, Franc Perdih
doaj   +1 more source

Divergent rhodium-catalyzed electrochemical vinylic C–H annulation of acrylamides with alkynes

open access: yesNature Communications, 2021
α-Pyridones and α-pyrones are ubiquitous structural motifs found in natural products and components of biologically active small molecules. Here, the authors report an oxidant-free Rh-catalyzed electrochemical divergent vinylic C–H annulation of ...
Yi-Kang Xing   +6 more
doaj   +1 more source

Synthesis and Characterization of New 3-Cyano-2-Pyridone Derivatives as Fluorescent Scaffolds

open access: yesChemistry Proceedings, 2023
2-pyridones are among the most widely used nitrogen-containing heterocyclic derivatives in various fields due to their structural properties and biological and therapeutic activities.
Asmaa Kebaili   +5 more
doaj   +1 more source

A Highly Substituted Ring-Fused 2-Pyridone Compound Targeting PrfA and the Efflux Regulator BrtA in Listeria monocytogenes

open access: yesmBio, 2023
Listeria monocytogenes is a facultative Gram-positive bacterium that causes listeriosis, a severe foodborne disease. We previously discovered that ring-fused 2-pyridone compounds can decrease virulence factor expression in Listeria by binding and ...
Hasan Tükenmez   +10 more
doaj   +1 more source

Inductive Production of the Iron-Chelating 2-Pyridones Benefits the Producing Fungus To Compete for Diverse Niches

open access: yesmBio, 2021
Diverse 2-pyridone alkaloids have been identified with an array of biological and pharmaceutical activities, including the development of drugs. However, the biosynthetic regulation and chemical ecology of 2-pyridones remain largely elusive.
Bo Chen   +4 more
doaj   +1 more source

The Construction of Polycyclic Pyridones via Ring-Opening Transformations of 3-hydroxy-3,4-dihydropyrido[2,1-c][1,4]oxazine-1,8-diones

open access: yesMolecules, 2023
This work describes the synthesis of 3-hydroxy-3,4-dihydropyrido[2,1-c][1,4]oxazine-1,8-diones, their tautomerism, and reactivity towards binucleophiles. These molecules are novel and convenient building-blocks for the direct construction of biologically
Viktoria V. Viktorova   +3 more
doaj   +1 more source

Tandem Ring Opening/Intramolecular [2 + 2] Cycloaddition Reaction for the Synthesis of Cyclobutane Fused Thiazolino-2-Pyridones

open access: yes, 2021
Reaction of thiazoline fused 2-pyridones with alkyl halides in the presence of cesium carbonate opens the thiazoline ring via S-alkylation and generates N-alkenyl functionalized 2-pyridones.
Pardeep Singh (294895)   +21 more
core   +1 more source

Photoredox Catalyzed Radical Cascade Aroylation (Sulfonylation)/Cyclization Enables Access to Fused Indolo-pyridones

open access: yes, 2021
A visible-light-initiated radical cascade reaction toward the synthesis of structurally diverse fused Indolo-pyridones is described. The reaction involves the addition of aroyl or sulfonyl radicals to N-alkyl-acryloyl-1H-indole-3-carboxamides ...
Zhi Guan (620291)   +9 more
core   +1 more source

13C- and 1H-NMR substituent-induced chemical shifts in N(1)-(4-substituted phenyl)-3-cyano-4,6-dimethyl-2-pyridones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
The 13C- and 1H-NMR chemical shifts of thirteen N(1)-(4-substituted phenyl)-3-cyano-4,6-dimethyl-2-pyridones were measured in deuterated dimethyl sulfoxide (DMSO-d6). The correlation analysis for the substituent-induced chemical shifts (SCS) with sigmap,
BRATISLAV Z. JOVANOVIC   +4 more
doaj   +3 more sources

5-Methyl-2-pyridone [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The crystal structure of the title compound, C(6)H(7)NO, is stabilized by inter-molecular N-H⋯O hydrogen bonds, resulting in inversion dimers. The structure is further consolidated by weak C-H⋯O hydrogen bonds.
Shulin Mao, Luo Yanghui, Pan Meiling
openaire   +3 more sources

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