Results 171 to 180 of about 7,997 (204)
Some of the next articles are maybe not open access.
ChemInform Abstract: Microwave‐Assisted Synthesis of 2‐Pyridone and 2‐Pyridone‐Based Compounds
ChemInform, 2015AbstractReview: 85 refs.
Dusan Z. Mijin +3 more
openaire +1 more source
Photoreactions of alkylated 2-pyridones
Journal of the Chemical Society, Perkin Transactions 2, 1985Photoisomerisation and dimerisation reactions in solution have been studied with a series of alkylated 2- pyridones (1). The low quantum efficiencies for the photoisomerisation (0.01–0.07) are related to the short-lived singlet excited states (below 1 ns). The effects of temperature, solvent, and substrate concentration were also examined.
Ryoka Matsushima, Kazuhide Terada
openaire +1 more source
2-Pyridone Synthesis Using 2-(Phenylsulfinyl)acetamide
Organic Letters, 20122-Pyridones were prepared by means of an efficient protocol including the 1,4-addition of 2-(phenylsulfinyl)acetamide to α,β-unsaturated ketones followed by cyclization and sulfoxide elimination.
Masaya, Fujii +4 more
openaire +2 more sources
Photoionization of 2-pyridone and 2-hydroxypyridine
Physical Chemistry Chemical Physics, 2010We studied the photoionization of 2-pyridone and its tautomer, 2-hydroxypyridine by means of VUV synchrotron radiation coupled to a velocity map imaging electron/ion coincidence spectrometer. The photoionization efficiency (PIE) spectrum is composed of steps.
C. Poully, J. +10 more
openaire +4 more sources
Helvetica Chimica Acta, 1961
6‐Thiazolyl‐2‐pyridones, a new class of chelating agents of the bipyridyl type, have been synthesized from the thioamide of 2‐pyridone‐6‐carboxylic acid; the latter has been obtained starting from the acid via the ethyl ester, amide and nitrile.
I. Steffan, B. Prijs
openaire +1 more source
6‐Thiazolyl‐2‐pyridones, a new class of chelating agents of the bipyridyl type, have been synthesized from the thioamide of 2‐pyridone‐6‐carboxylic acid; the latter has been obtained starting from the acid via the ethyl ester, amide and nitrile.
I. Steffan, B. Prijs
openaire +1 more source
New Synthetic Methods for 2‐Pyridone Rings
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Mercedes Torres +2 more
openaire +1 more source
Multicomponent Synthesis of Highly Substituted 2‐Pyridones.
ChemInform, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Carlos Marcos +5 more
openaire +1 more source
Photochemical dehydrogenation of 3,4-dihydro-2-pyridones
Photochemical & Photobiological Sciences, 2009Photochemical dehydrogenation of various substituted 3,4-dihydro-2-pyridones was achieved in a very efficient way by employing 10-15 mol% of photo-induced electron transfer sensitizers like 9-cyanoanthracene, 9-cyanophenanthrene and 1-cyanonaphthalene in presence of molecular oxygen, for the first time.
Partha Sarathi, Sadhu +3 more
openaire +2 more sources
Tetrahedron, 2008
Cycloaddition reactions of sulfoxide- and sulfone-substituted dihydro-2-pyridones and 2-pyridones with electron-rich dienes gave new bicyclic and tricyclic products in good to fair yields. The reactivity, regioselectivity, and stereoselectivity of these reactions were compared with semi-empirical theoretical calculations.
Shang-Shing P. Chou, Pong-Won Chen
openaire +1 more source
Cycloaddition reactions of sulfoxide- and sulfone-substituted dihydro-2-pyridones and 2-pyridones with electron-rich dienes gave new bicyclic and tricyclic products in good to fair yields. The reactivity, regioselectivity, and stereoselectivity of these reactions were compared with semi-empirical theoretical calculations.
Shang-Shing P. Chou, Pong-Won Chen
openaire +1 more source
2-Pyridon-katalysierte Esteraminolyse
2005Im Rahmen dieser Arbeit wurde die katalysierte Aminolysereaktion aktivierter Ester durch Amine in unpolaren Lösemitteln untersucht. Als Modelreaktion diente dabei die n-Butylaminolyse von p-Nitrophenylacetat, die mit Hilfe von 1H-NMR-Messungen in CDCl3 spektroskopisch verfolgt wurde. Als Katalysatoren dienten alkylsubstituierte 3-Cyano-2-pyridone.
openaire +1 more source