Results 41 to 50 of about 42,888,361 (250)

The Thermodynamic and Kinetic Properties of 2-Hydroxypyridine/2-Pyridone Tautomerization: A Theoretical and Computational Revisit. [PDF]

Int J Mol Sci, 2016
The gas-phase thermal tautomerization reaction between 2-hydroxypyridine (2-HPY) and 2-pyridone (2-PY) was investigated by applying 6-311++G** and aug-cc-pvdz basis sets incorporated into some density functional theory (DFT) and coupled cluster with ...
Hejazi SA, Osman OI, Alyoubi AO, Aziz SG, Hilal RH.   +4 more
europepmc   +2 more sources

Flexible BODIPY Platform That Offers an Unexpected Regioselective Heterocyclization Reaction toward Preparation of 2-Pyridone[ a]-Fused BODIPYs.

Journal of Organic Chemistry, 2019
We have explored the synthetic routes for regioselective formation of 2-pyridone[ a]- and 2-pyridone[ b]-fused BODIPYs using 1,3,5,7-tetramethyl-2,6-dicarbethoxy-BODIPY as the universal starting platform.
N. Didukh, V. Yakubovskyi, Yuriy V. Zatsikha, Gregory T. Rohde, V. Nemykin, Yu. P. Kovtun   +5 more
semanticscholar   +1 more source

Enzymatic synthesis of vitamin B6 precursor [PDF]

Journal of the Serbian Chemical Society, 2013
3-Cyano-4-ethoxymethyl-6-methyl-2-pyridone is an important precursor in the synthesis of vitamin B6, obtained in the addition reaction between 2-cyanoacetamide and 1-ethoxy-2,4-pentanedione catalyzed by lipase from Candida rugosa ...
Prlainović Nevena Ž., Bezbradica Dejan I., Knežević-Jugović Zorica D., Veličković Dušan V., Mijin Dušan Ž.   +4 more
doaj   +1 more source

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

The S-1/S-2 exciton interaction in 2-pyridone center dot 6-methyl-2-pyridone: Davydov splitting, vibronic coupling, and vibronic quenching

, 2011
The excitonic splitting between the S-1 and S-2 electronic states of the doubly hydrogen-bonded dimer 2-pyridone center dot 6-methyl-2-pyridone (2PY center dot 6M2PY) is studied in a supersonic jet, applying two-color resonant two-photon ionization (2C ...
Ottiger, P., Leutwyler, S., Heid, C. G., Philipp Ottiger, Leist, R., Cornelia G. Heid, Roman Leist, Samuel Leutwyler   +7 more
core   +1 more source

Construction of Fully Substituted 2-Pyridone Derivatives via Four-Component Branched Domino Reaction Utilizing Microwave Irradiation.

Journal of Organic Chemistry, 2018
Microwave irradiation, four-component branched domino reaction of methyl acetoacetate/2,4-pentanedione, diethyl malonate, triethyl orthoformate and amines offering an extremely efficient strategy for the construction of fully substituted 2-pyridone ...
Hairui Bai, Rongrong Sun, Shitao Liu, Lijuan Yang, Xuebing Chen, Chao Huang   +5 more
semanticscholar   +1 more source

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  

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

Late‐Stage Functionalization of Peptides on the Solid Phase

Angewandte Chemie International Edition, EarlyView.
Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner, Truc Lam Pham, Franziska Thomas   +2 more
wiley   +1 more source