Substituted quinolinones. 18. 3-Acetyl-4-methylthioquinolin-2(1H)-one as useful synthon intermediate for synthesis of some new quinolinones

Substituted quinolinones. 18. 3-Acetyl-4-methylthioquinolin-2(1H)-one as useful synthon... 3-Acetyl-4-methylthioquinolin-2(1H)-one (3) has been prepared and its reactivity towards treatment with different reagents, dilute sulfuric acid, aqueous sodium hydroxide, and hydrogen peroxide, is described. The reactions of compound 3 with benzylamine, benzaldehyde, DMF-DMA, Vilsmeier-Haack reagent, 2-chloro-3-formyl-pyridopyrimidone and malononitrile have been carried out under convenient conditions. Compound 3 underwent heterocyclization reactions with some binucleophiles, hydrazine, hydroxylamine, urea, thiourea, semicarbazide, and thiosemicarbazide, furnishing some known five, six, and seven heterocyclic annellated quinolines. All the new compounds have been characterized using different spectral and analytical tools. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Substituted quinolinones. 18. 3-Acetyl-4-methylthioquinolin-2(1H)-one as useful synthon intermediate for synthesis of some new quinolinones

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Publisher
Springer Netherlands
Copyright
Copyright © 2012 by Springer Science+Business Media B.V.
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-012-0678-7
Publisher site
See Article on Publisher Site

Abstract

3-Acetyl-4-methylthioquinolin-2(1H)-one (3) has been prepared and its reactivity towards treatment with different reagents, dilute sulfuric acid, aqueous sodium hydroxide, and hydrogen peroxide, is described. The reactions of compound 3 with benzylamine, benzaldehyde, DMF-DMA, Vilsmeier-Haack reagent, 2-chloro-3-formyl-pyridopyrimidone and malononitrile have been carried out under convenient conditions. Compound 3 underwent heterocyclization reactions with some binucleophiles, hydrazine, hydroxylamine, urea, thiourea, semicarbazide, and thiosemicarbazide, furnishing some known five, six, and seven heterocyclic annellated quinolines. All the new compounds have been characterized using different spectral and analytical tools.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 27, 2012

References

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