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Synthesis characterization and biological activities of 4 imino 3 arylazo 4H pyrimido 2 1 b 1 3 benzothiazole 2 oles      
Yazarlar
Erişkin Selinay
Prof. Dr. Nesrin ŞENER Prof. Dr. Nesrin ŞENER
Kastamonu Üniversitesi, Türkiye
Serkan Yavuz
Gazi Üniversitesi, Türkiye
Prof. Dr. İzzet ŞENER Prof. Dr. İzzet ŞENER
Pamukkale Üniversitesi, Türkiye
Özet
4-Imino-3,4-dihydro-2H-pyrimido[2,1-b][1,3] benzothiazole-2-one (3) was synthesized by the reaction of 2-aminobenzothiazole with ethyl cyanoacetate in solvent free conditions at 150°C. A series of pyrimido benzothiazole-based azo dyes 4( a-m) were obtained by the coupling of carbocyclic amine-based diazonium chloride with compound (3). The synthesized dyes were purified and characterized by elemental analysis, FT-IR, 1 H NMR, and high-resolution mass spectral data. The solvatochromic behaviors of dyes in various solvents were examined. All the azo dyes exhibited pronounced in vitro antibacterial activities against Gram-positive and Gram-negative bacteria, as well as fungi. The results revealed that most of the compounds exhibited good levels of antibacterial activity. Compounds 4d and 4h showed excellent levels of antimicrobial activity with MIC values of 8.25 μg/mL. © Springer Science+Business Media 2014.
Anahtar Kelimeler
Antimicrobial activity | Azo dyes | Diazo-coupling reaction | Pyrimido benzothiazole | Solvatochromism
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı MEDICINAL CHEMISTRY RESEARCH
Dergi ISSN 1054-2523
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 08-2014
Cilt No 23
Sayı 8
Sayfalar 3733 / 3743
Doi Numarası 10.1007/s00044-014-0962-8
Makale Linki http://link.springer.com/10.1007/s00044-014-0962-8