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Scheme : Synthesis of new 2-quinolone derivatives

Scheme : Synthesis of new 2-quinolone derivatives

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Fig.(1): 1 H-NMR spectrum for compound [A1]
Fig. (7): 1 H-NMR spectrum for compound [A5]
Scheme : Synthesis of new 2-quinolone derivatives
Synthesis and Characterization of New 2-Quinolone Sulfonamide Derivatives
Article
Full-text available
  • Aug 2016
Abstract: A series of new 2-quinolone derivatives linked to benzene sulphonyl moieties were performed by many steps: the first step involved preparation of different coumarins (A1,A2) by condensation of different substituted phenols with ethyl acetoacetate. The compound A1 was treated with nitric acid to afford two isomers of nitrocoumarin derivati...
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Fig.(1): 1 H-NMR spectrum for compound [A1]
Fig. (7): 1 H-NMR spectrum for compound [A5]
Scheme : Synthesis of new 2-quinolone derivatives
Synthesis and Characterization of New 2-Quinolone Sulfonamide Derivatives
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  • Dec 2016
A series of new 2-quinolone derivatives linked to benzene sulphonyl moieties were performed by many steps: the first step involved preparation of different coumarins (A1,A2) by condensation of different substituted phenols with ethyl acetoacetate. The compound A1 was treated with nitric acid to afford two isomers of nitrocoumarin derivatives (A3) a...
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Synthesis of New Substituted Coumarin Derivatives containing Schiff-Base as Potential Antimicrobial and Antioxidant Agents
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By unusual method for separating two isomers of a substituted nitro-coumarin using a soxhlet extractor and in controlling temperature to get a selective nitration reaction, several new Schiff base coumarins were synthesized from nitro coumarins as starting material, which were reduced by Fe in glacial acetic acid to produce corresponding amino coumarin derivatives. Then the latter was reacted with different aromatic aldehydes to produce the desired Schiff bases derivatives. After characterization by Fourier transform infrared (FT-IR), Proton nuclear magnetic resonance (1 HNMR) and Carbon-13 nuclear magnetic resonance (C-NMR), all these compounds were evaluated as potential Antimicrobial and Antioxidant Agents.
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