Results 261 to 270 of about 20,827 (302)

Umpolung-like Cross-coupling of Tosylhydrazones with 4-Hydroxy-2-pyridones under Palladium Catalysis.

Organic Letters, 2019
Tosylhydrazones under palladium catalysis were found to perform cross-coupling reactions with 4-hydroxy-2-pyridones. The umpolung-like reactivity, between the α-carbon of tosylhydrazone and the 3-position of the heterocycle, which is observed in the ...
Tania Katsina, K. C. Papoulidou, A. Zografos   +2 more
semanticscholar   +1 more source

Electroorganic Oxidation of Pyridones

ECS Meeting Abstracts, 2018
Electroorganic synthesis can be utilized as a green alternative in complex organic synthesis reactions for pharmaceutical compounds, mitigating or eliminating complex stoichiometric oxidants during organic synthesis. An electrochemical oxidation reaction can make a synthetic transformation more cost effective and more efficient when compared to ...
Dylan Daniel Rodene, Narendar R Gade, Joann Jee, Thomas D Roper, Ram B. Gupta   +4 more
openaire   +1 more source

Chlorosulfonation of 2-pyridones

Chemistry of Heterocyclic Compounds, 1974
Chlorosulfonlyl-substituted 2-pyridones were obtained for the first time. The ability of 2-pyridone-3-sulfonyl chlorides to undergo conversion to sulfonylides of the pyridine series by the action of bases is shown in the case of 5,6,7,8-tetrahydro-2-quinolone-3-sulfonyl chloride.
N. P. Shusherina, T. I. Likhomanova, A. M. Gofman   +2 more
openaire   +1 more source

Umsetzungen des α‐Pyridons

Chemische Berichte, 1960
AbstractAus α‐Pyridon‐silber und 1.3‐Dijod‐propan wurde 2.3‐Dihydro‐4H‐pyrid[2.1‐b]‐oxaziniumjodid erhalten. Aus 1‐Diazo‐3‐chlor‐aceton und α‐Pyridon ließen sich 1.3‐Bis‐[2‐oxo‐1.2‐dihydro‐pyridyl‐(1)]‐aceton und N‐[3‐Chlor‐acetonyl]‐α‐pyridon gewinnen. Deren katalyt. Hydrierung führte zu den entspr.
Karl Winterfeld, Helmut Michael
openaire   +1 more source

Photoisomerization of 4-pyridones to 2-pyridones

Journal of the American Chemical Society, 1974
Nobuyuki Ishibe, Jun Masui
openaire   +1 more source

2-Pyridones

Chemistry of Heterocyclic Compounds, 1974
N. P. Shusherina, L. V. Betaneli
openaire   +1 more source

2-Pyridones

Chemistry of Heterocyclic Compounds, 1972
N. P. Shusherina, T. I. Likhomanova
openaire   +1 more source

2-pyridones

The Lancet, 1995
J.F. Harper, DavidC. Hooper
openaire   +1 more source

2-Pyridon-katalysierte Esteraminolyse

2005
Im 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

2‐Pyridon‐Mesogene; 2‐Pyridon‐5‐carbonsäure‐ester

Zeitschrift für Chemie, 1978
Siegfried Hoffmann, Werner Witkowski, Gisela Borrmann, Hermann Schubert, Wolfgang Weissflog   +4 more
openaire   +1 more source