Benzo[g]quinoline heterocyclic derivative as a typical precursor in the synthesis of new class of cyanine-like dyes

Gomaa, A. Maha Mobaruk; El‐Deen, A. Naglaa Salah; Elkanzi, Nadia A. A.

doi:10.5155/eurjchem.3.4.461-467.699

Cited by 9 publications

(5 citation statements)

References 26 publications

(20 reference statements)

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“…Substitution A = 1-ethyl pyridinium-4-yl salt in dye (4a) by A = 1-ethyl quinolinium-4-yl salt in dye (4b) caused a bathochromic shift of λmax = 75 nm, so compound (4b), exhibited λmax = 520 nm. This back to the more extensive π-delocalization and conjugation within the extra phenyl ring in quinolinium ring in dye (4b) (Table 2) (Ahmed et al, 2018;Gomaa et al, 2012;Shindy et al, 2019;Shindy et al, 2017;Shindy et al, 2015;Soriano et al, 2015;Shindy et al, 2018).…”

Section: Spectral Behavior In 95 % Ethanol Solutionmentioning

confidence: 97%

Novel Simple Cyanine, Carbocyanine, and Dicarbocyanine Dyes: Synthesis, Characterization and Application on Polyester Fabric

2019

European Journal of Molecular Biotechnology

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Novel simple cyanine dyes, carbocyanine dyes and dicarbocyanine dyes derived from the nucleus 6-amino-3-methyl-1,2 diaza 4,13 dihydronaphthacene 5, 7, 12 trione (2) were prepared. The electronic visible absorption spectra of all the novel synthesized cyanine dyes were investigated in 95 % ethanol to evaluate their photosensitization characters and uses these dyes as photographic sensitizers in industry. The antimicrobial activity evaluation of mono, tri and pentamethine cyanine dyes against some bacterial and fungi strains( Escherichia coli, Staphylococcus aures, Aspergillus lavus and Candida albicans) was tested. The antimicrobial activity of the dyes usually increases when they give higher inhibition zone diameter against the tested bacterial and fungi strains. The dyeing process and fastness properities of the new synthesized cyanine dyes were examined on polyester fabric. Polyester is the hydrophobic fibres and usually dyed with cyanine dyes due to their high tinctorial strength and good fastness properties. The structural characterization of dyes carried out by elemental analysis, visible, mass spectroscopy, 1 H NMR and IR spectra.

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Section: Spectral Behavior In 95 % Ethanol Solutionmentioning

confidence: 97%

Novel Simple Cyanine, Carbocyanine, and Dicarbocyanine Dyes: Synthesis, Characterization and Application on Polyester Fabric

2019

European Journal of Molecular Biotechnology

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“…Procedure for the synthesis of 5- ((3-acetyl-1,4-dioxo-1,4-dihydronaphthalen-2yl) diazenyl)-2-hydroxybenzaldehyde (3) Compound (1) (2-acetyl-3-aminonaphthalene-1, 4-dione(1)) and diazonium salt (2) were synthesized according to previous methods [40][41][42].…”

Section: Chemistrymentioning

confidence: 99%

Antioxidant, Antimicrobial, and Molecular Docking Studies of Novel 1, 4-naphthoquinone Derivatives

Elkanzi

Hrichi

2021

Preprint

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The synthesis of novel 1,4-naphthoquinone derivatives has attracted prominent interest in the field of medicinal chemistry since these compounds exhibit potent pharmacological activity as antibacterial, antioxidant, antifungal, and anticancer. Herein, a series of novel 1,4-naphthoquinone derivatives 4-7, 8a-c, and 9a-d containing heterocyclic moieties were synthesized in good yields and characterized by spectral and elemental analyses. All the new synthesized compounds were subjected to in-vitro antimicrobial testing against gram-positive, gram-negative, and fungal strains by calculating the average of the zone of inhibition. The antimicrobial results showed that compounds 8b, 9b, and 9c displayed the highest efficacy against both bacterial and fungal strains. Further studies have been conducted to estimate the antioxidant activity of the compounds using DPPH scavenging assay. The obtained results revealed that compounds 9d, 9a, 9b, 8c, and 6 exhibited the highest radical scavenging activity. Docking studies of the most active antimicrobial compounds within GLN- 6-P, recorded good scores with several binding interactions with the active site.

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“…Some reactions go through bond breaking, indicating irreversible reaction. For quasi reversible reactions, peak currents not exact proportional [20][21][22][23][24][25][26][27][28][29][30] to .…”

Section: Electro Chemical Behavior Redox Processes For Cubr 2 At Glasmentioning

confidence: 99%

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et al. 2019

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The redox mechanisms were examined for Copper bromide in the absence and presence of (LC) using cyclic voltammetry. The mechanisms of reduction and oxidation were examined while using new glassy carbon electrode prepared in laboratory from pure carbon piece jointed with copper wire and isolated by heat shrink polymer to avoid contact with solutions. In order to explain the type of the used reaction in electrochemical study, the complexation stability constants and Gibbs free energies of complex formation obtained from the interaction of CuBr 2 with (LC) were obtained from the experimental part and their values were discussed. The prepared galssy carbon electrode was polished with Al 2 O 3 and put in a woolen clear piece, washed and used for cyclic voltammetry measurements.

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Benzo[g]quinoline heterocyclic derivative as a typical precursor in the synthesis of new class of cyanine-like dyes

Cited by 9 publications

References 26 publications

Novel Simple Cyanine, Carbocyanine, and Dicarbocyanine Dyes: Synthesis, Characterization and Application on Polyester Fabric

Novel Simple Cyanine, Carbocyanine, and Dicarbocyanine Dyes: Synthesis, Characterization and Application on Polyester Fabric

Antioxidant, Antimicrobial, and Molecular Docking Studies of Novel 1, 4-naphthoquinone Derivatives

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