74417-30-4Relevant academic research and scientific papers
Synthesis, electrochemistry, in-situ spectroelectrochemistry and molecular structures of 1,4-naphthoquinone derivatives
Akyüz, Duygu,Deniz, Nahide Gulsah,Koca, Atif,Sayil, Cigdem
, (2020/09/11)
A novel series of 1,4-naphthoquinones substituted containing sulfur, nitrogen, oxygen atoms were synthesized. The structures of the novel products were characterized by using the various spectroscopic techniques such as 1H nuclear magnetic resonance (NMR), 13C NMR, mass spectrometry (MS), Fourier transform infrared spectroscopy (FT-IR) and microanalysis. The crystal structures of 2,3-bis(benzylsulfanyl)-1,4-napthoquinone 4 and 2,3-bis(ethylsulfanyl)-1,4-naphthoquinone 7 were determined by using X-ray single crystal diffraction method. Electrochemical behaviors of some 1,4-naphthoquinone (NQ) derivatives 3, 4, 7, 8, 9, 10, 12, 13, 15, 16, 17, 19 and 20 were studied by using cyclic voltammetry, square wave voltammetry and in-situ UV-Vis spectroelectrochemistry. The substituents of the NQ derivatives significantly altered the redox mechanism. In-situ UV-Vis spectroelectrochemical analyses of NQs supported the proposed redox mechanism.
Design, synthesis, biological evaluation, and antioxidant and cytotoxic activity of heteroatom-substituted 1,4-naphtho- and benzoquinones
Deniz, Nahide Gülsah,Ibis, Cemil,Gokmen, Zeliha,Stasevych, Maryna,Novikov, Volodymyr,Komarovska-Porokhnyavets, Olena,Ozyurek, Mustafa,Guclu, Kubilay,Karakas, Didem,Ulukaya, Engin
, p. 1029 - 1039 (2016/02/03)
In the present paper, we report the synthesis, characterization, and biological evaluation as antifungal, antibacterial, antioxidant, and cytotoxic/anticancer agents of N-, S-, O-substituted-1,4-naphtho- and 2,5-bis(amino-substituted)-1,4-benzoquinone der
Heterocyclic Quinonoid Chromophoric Systems : Part V - Synthesis of 3,4-Phthaloyl-2-thiaquinolizine
Shah, J. N.,Tilak, B. D.
, p. 29 - 36 (2007/10/02)
Condensation of α-mercaptomethylpyridine with 1,4-naphthoquinone, 2-chloro-1,4-naphthoquinone and 2,3-dichloro-1,4-naphthoquinone leads to a number of quinonoid derivatives including the desired 2-α-pyridylmethylmercapto-1,4-naphthoquinone (XVI) and its 3-chloro derivative (XI).Cyclization of XVI and XI gives 3,4-phthaloyl-2-thiaquinolizine (I) which represents a new heterocyclic quinonoid chromophoric system.Plausible mechanisms for the formation of the different heterocyclic quinones are discussed.Interaction of 1,4-naphthoquinone with 1-mercaptomethylisoquinoline affords 8,9-benzo-3,4-phthaloyl-2-thiaquinolizine (XXI).The thiaquinolizines undergo sulphur extrusion on heating to m.p. or on treatment with alkaline dithionite to yield the corresponding 2,3-phthaloylpyrrocolines.
