Synthesis, characterization and absorption properties of some novel heterocyclic tetrakisazo dyes

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dc.contributor.authorŞener, İzzet
dc.contributor.authorAydın, Gülşah
dc.date.accessioned2024-06-13T20:15:53Z
dc.date.available2024-06-13T20:15:53Z
dc.date.issued2014
dc.departmentMeslek Yüksekokulu, Gedik Meslek Yüksekokulu, Kimya Teknolojisi Programı
dc.description.abstractObjective: The aim of the work was to designed and synthesized novel heterocyclic tetrakisazo dyes.Methods: 2,2'[(4,4'-dihydrazonebiphenyl)]-bis(3-iminobuthyronitrile) (1) were synthesized by diazotization of benzidine using hydrochloric acid in water. Compounds (1) reacted with hydrazine hydrate to afford the corresponding 4,4'-bis [3-methyl-5-amino-1-H-pyrazol-4-ylazo]biphenyl (2). Seven novel hetaryltetrakisazobenzidine Derivatives 3(a-g) were achieved by diazotization of 4,4'-bis [3-methyl-5-amino-1-H-pyrazol-4-ylazo]biphenyl and coupling with various coupling components.Results: The obtained hetaryltetrakisazo dyes 3(a-g) were characterized based on FT-IR, 1H-NMR, and mass spectroscopic techniques as well as elemental analysis. The solvatochromic behavior of these dyes in various solvents was examined. Acid-base effects on the visible absorption maxima of the dyes were also reported.Conclusion: Synthesis and characterization of seven of these nine novel compounds synthesized, which are hetaryltetrakisazo dyes 3(a-g).
dc.identifier.endpage545
dc.identifier.issn0975-1491
dc.identifier.issue9
dc.identifier.scopus2-s2.0-84907814918
dc.identifier.scopusqualityN/A
dc.identifier.startpage540
dc.identifier.urihttps://hdl.handle.net/11501/927
dc.identifier.volume6
dc.indekslendigikaynakScopus
dc.institutionauthorAydın, Gülşah
dc.language.isoen
dc.publisherInternational Journal of Pharmacy and Pharmaceutical Science
dc.relation.ispartofInternational Journal of Pharmacy and Pharmaceutical Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDiazo-Coupling Reaction
dc.subjectDiazotization
dc.subjectPyrazole
dc.subjectSolvatochromism
dc.subjectTetrakisazo Dyes
dc.titleSynthesis, characterization and absorption properties of some novel heterocyclic tetrakisazo dyes
dc.typeArticle

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