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ChemInform Abstract: PHOTOISOMERIZATION OF 4‐PYRIDONES TO 2‐PYRIDONES
Chemischer Informationsdienst, 1974AbstractBestrahlung (Hg‐Mitteldrucklampe) der 4‐Pyridone (I) liefert die isomeren 2‐Pyridone (II) als Hauptprodukte, während die 4‐Pyridone (III) unter gleichen Bedingungen unverändert bleiben.
NOBUYUKI ISHIBE, JUN MASUI
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Journal of the Chemical Society, Chemical Communications, 1985
Lithiation of 1-methyl-4-pyridone with n-butyl-lithium at -78 °C proceeds smoothly at the C-2 position and 2-substituted-4-pyridones (1c–j) are obtained by subsequent reaction with electorphiles; lithiation of 1-methyl-2-pyridone takes place predominantly at the N-methyl, the lithio-derivative reacting rapidly, even at -78 °C with starting pyridone to ...
Premji Patel, John A. Joule
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Lithiation of 1-methyl-4-pyridone with n-butyl-lithium at -78 °C proceeds smoothly at the C-2 position and 2-substituted-4-pyridones (1c–j) are obtained by subsequent reaction with electorphiles; lithiation of 1-methyl-2-pyridone takes place predominantly at the N-methyl, the lithio-derivative reacting rapidly, even at -78 °C with starting pyridone to ...
Premji Patel, John A. Joule
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Journal of the Chemical Society B: Physical Organic, 1968
The reaction between N-alkyl-2-pyridones and tetracyanoethylene produces 2 : 1 salts of the pyridone with pentacyanopropene. Metathetical exchange of these salts with 4H-quinolizin-4-one leads to mono- and bis-quinolizone salts. Similar salts are formed with hydroquinone in place of pentacyanopropene.
B. S. Thyagarajan +2 more
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The reaction between N-alkyl-2-pyridones and tetracyanoethylene produces 2 : 1 salts of the pyridone with pentacyanopropene. Metathetical exchange of these salts with 4H-quinolizin-4-one leads to mono- and bis-quinolizone salts. Similar salts are formed with hydroquinone in place of pentacyanopropene.
B. S. Thyagarajan +2 more
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Photoisomerization of 4-pyridones to 2-pyridones
Journal of the American Chemical Society, 1974Nobuyuki Ishibe, Jun Masui
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Chemistry of Heterocyclic Compounds, 1972
N. P. Shusherina, T. I. Likhomanova
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N. P. Shusherina, T. I. Likhomanova
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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.
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2‐Pyridon‐Mesogene; 2‐Pyridon‐5‐carbonsäure‐ester
Zeitschrift für Chemie, 1978Siegfried Hoffmann +4 more
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