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Novel monoazo disperse and cationic dyes: preparation, structure investigation, study of spectroscopic, antibacterial and antifungal potential

Novel monoazo disperse and cationic dyes: preparation, structure investigation, study of... A series of azo naphthalimide dyes were prepared by coupling N,N-diethyl-m-toluidine with three heterocyclic amines as the diazo components. The structures of the nine prepared azo dyes were fully characterized by Fourier transform infrared, differential scanning calorimeter, thin-layer chromatography, proton and carbon nuclear magnetic resonance, mass spec- trometry, elemental analysis (CHNS), and UV–Vis spectroscopic techniques. UV–Vis studies represented that all dyes -1 -1 have molar extinction coefficients between 30,000 and 61,000 M cm and have maximum wavelengths between 545 and 558 nm in DMF solution. The newly synthesized dyes were screened for their potential antimicrobial activities against Gram-positive, Gram-negative bacteria and fungi using the cup plate and broth microdilution methods. The results of antibacterial and antifungal activities exhibited significant inhibitory effect against the test microorganisms in vitro. Graphical abstract Keywords Bioinorganic chemistry  Dyes  Diazo compounds  UV–Vis spectroscopy  Aromaticity Introduction derivatives a large p-conjugated backbone which is advantageous, have strong hydrophobicity and also can Naphthalimide derivatives, for their significant potential in effortlessly cause diverse interactions [5, 7, 8]. As expec- medicinal chemistry [1–3] and material sciences are being ted, these derivatives can better interact with various active keenly investigated [4–6]. The outstanding characteristics targets in biological http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Monatshefte für Chemie - Chemical Monthly Springer Journals

Novel monoazo disperse and cationic dyes: preparation, structure investigation, study of spectroscopic, antibacterial and antifungal potential

Shaki, Hanieh
Monatshefte für Chemie - Chemical Monthly , Volume 149 (6) – Feb 10, 2018
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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Austria, part of Springer Nature
Subject
Chemistry; Chemistry/Food Science, general; Organic Chemistry; Inorganic Chemistry; Analytical Chemistry; Physical Chemistry; Theoretical and Computational Chemistry
ISSN
0026-9247
eISSN
1434-4475
DOI
10.1007/s00706-017-2130-6
Publisher site
See Article on Publisher Site

Abstract

A series of azo naphthalimide dyes were prepared by coupling N,N-diethyl-m-toluidine with three heterocyclic amines as the diazo components. The structures of the nine prepared azo dyes were fully characterized by Fourier transform infrared, differential scanning calorimeter, thin-layer chromatography, proton and carbon nuclear magnetic resonance, mass spec- trometry, elemental analysis (CHNS), and UV–Vis spectroscopic techniques. UV–Vis studies represented that all dyes -1 -1 have molar extinction coefficients between 30,000 and 61,000 M cm and have maximum wavelengths between 545 and 558 nm in DMF solution. The newly synthesized dyes were screened for their potential antimicrobial activities against Gram-positive, Gram-negative bacteria and fungi using the cup plate and broth microdilution methods. The results of antibacterial and antifungal activities exhibited significant inhibitory effect against the test microorganisms in vitro. Graphical abstract Keywords Bioinorganic chemistry  Dyes  Diazo compounds  UV–Vis spectroscopy  Aromaticity Introduction derivatives a large p-conjugated backbone which is advantageous, have strong hydrophobicity and also can Naphthalimide derivatives, for their significant potential in effortlessly cause diverse interactions [5, 7, 8]. As expec- medicinal chemistry [1–3] and material sciences are being ted, these derivatives can better interact with various active keenly investigated [4–6]. The outstanding characteristics targets in biological

Journal

Monatshefte für Chemie - Chemical Monthly – Springer Journals

Published: Feb 10, 2018

References

  • Developments in the chemistry and technology of organic dyes
    Griffiths, J