Results 41 to 50 of about 10,272 (249)

rac-2-Methyl-3,4,5,6-tetrahydro-2H-2,6-methano-1,3-benzoxazocin-4-one

Acta Crystallographica Section E, 2010
The title compound, C12H13NO2, represents a conformationally restricted 2-pyridone analogue of 1,4-dihydropyridine-type calcium antagonists and was selected for a crystal structure determination in order to explore some aspects of drug-receptor ...
Viktor Kettmann, Jan Světlík, Lucia Veizerová   +2 more
doaj   +1 more source

Gas-phase Lifetimes of Nucleobase Analogues by Picosecond Pumpionization and Streak Techniques

CHIMIA, 2014
The picosecond (ps) timescale is relevant for the investigation of many molecular dynamical processes such as fluorescence, nonradiative relaxation, intramolecular vibrational relaxation, molecular rotation and intermolecular energy transfer, to
Susan Blaser, Hans-Martin Frey, Cornelia G. Heid, Samuel Leutwyler   +3 more
doaj   +1 more source

Synthesis of 2-Aryl-5-Nitropyridines by Three-Component Ring Transformation of 3,5-Dinitro-2-Pyridone [PDF]

, 2014
2-Arylated-5-nitropyridines were efficiently synthesized by a three-component ring transformation of 3,5-dinitro-2-pyridone with aromatic ketones in the presence of ammonium acetate, in which the dinitropyridone serves as a synthetic equivalent of an ...
1310, 1311, 1312, 1313, 1314, 1315, Asahara, Haruyasu, Kobiro, Kazuya, Le, Thi Song, Nishiwaki, Nagatoshi, Saigo, Kazuhiko, Sugimoto, Ryuichi   +11 more
core   +1 more source

Asymmetric Homogeneous Hydrogenation of 2-Pyridones [PDF]

Synlett, 2015
An asymmetric homogeneous hydrogenation of 2(1H)-pyridones has been developed, using a ruthenium complex bearing two chiral N-heterocyclic carbene (NHC) ligands. To the best of our knowledge, the presented reaction is the first example of a homogeneous asymmetric conversion of 2-pyridones into the corresponding enantioenriched 2-piperidones.
Christoph Schlepphorst, Frank Glorius, Jędrzej Wysocki   +2 more
openaire   +3 more sources

Synthesis, structure and solvatochromic properties of 3-cyano-4,6-diphenyl-5-(3- and 4-substituted phenylazo)-2-pyridones [PDF]

Journal of the Serbian Chemical Society, 2010
A series of some new pyridone arylazo dyes was synthesized from the corresponding diazonium salts and 3-cyano-4,6-diphenyl-2-pyridone using the classical reaction for the synthesis of the azo compounds.
NINA TODOROVIĆ, GORDANA S. UŠĆUMLIĆ, NATAŠA V. VALENTIĆ, DUŠAN Ž. MIJIN, ALEKSANDAR D. MARINKOVIĆ, ADEL S. ALIMMARI   +5 more
doaj  

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

Synthesis of 5-Aroyl-2-aryl-3-hydroxypyridin-4(1H)-ones

Molbank, 2023
A two-stage synthesis of 5-aroyl-2-aryl-3-hydroxypyridin-4(1H)-ones (56–66% overall yields) was carried out by refluxing 5-aroyl-3-(benzyloxy)-2-(het)aryl-4H-pyran-4-ones with ammonium acetate in AcOH and subsequent debenzylation.
Elena V. Steparuk, Dmitrii L. Obydennov, Vyacheslav Y. Sosnovskikh   +2 more
doaj   +1 more source

Characterization studies of 1-(4-cyano-2-oxo-1,2-dihydro-1-pyridyl)-3-(4-cyano-1,2-dihydro-1-pyridyl)propane formed from the reaction of hydroxide Ion with 1,3-Bis-(4-cyano pyridinium)propane [PDF]

, 2011
The aqueous alkaline reaction of 1,3-bis(4-cyanopyridinium)propane dibromide, a reactant constituted of two pyridinium rings linked by a three-methylene bridge, generates a novel compound,1 -(4-cyano-2-oxo-1,2-dihydro-1-pyridyl)-3-(4-cyano-1,2-dihydro-1 ...
CATALANI, Luiz H, CHAIMOVICH, Hernan, FIORI, Simone, HIOKA, Noboru, MEYER, Emerson, POLITI, Mário J, SCHUQUEL, Ivânia T. A, SILVA, Idélcio N. da   +7 more
core   +1 more source

Crystal Chemistry of Zinc Quinaldinate Complexes with Pyridine-Based Ligands

Crystals, 2018
Substitution of methanol in [Zn(quin)2(CH3OH)2] (quin− denotes an anionic form of quinoline-2-carboxylic acid, also known as quinaldinic acid) with pyridine (Py) or its substituted derivatives, 3,5-lutidine (3,5-Lut), nicotinamide (Nia), 3 ...
Barbara Modec
doaj   +1 more source

Innovative solutions to sticky situations: Antiadhesive strategies for treating bacterial infections [PDF]

, 2016
Bacterial adherence to host tissue is an essential process in pathogenesis, necessary for invasion and colonization and often required for the efficient delivery of toxins and other bacterial effectors.
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core   +2 more sources