NAHIDE GULSAH DENIZ
Articles written in Journal of Chemical Sciences
Volume 124 Issue 3 May 2012 pp 657-667
Synthesis, characterization of N-, S-, O-substituted naphthoand benzoquinones and a structural study
Cemil Ibis Nahide Gulsah Deniz
The new series of N-, S-, O-substituted 1,4-naphthoquinone and S-, O-substituted 1,4-benzoquinone compounds were synthesized via vinylic substitution. Compounds
Volume 125 Issue 4 July 2013 pp 755-764
Nahide Gulsah Deniz Cemil Ibis
Polyhalogenated-2-nitro-1, 3-butadienes are important synthetic precursors for a variety of polyfunctionalized bioactive heterocycles. Herein, we report the reactions of 1, 1, 3, 4, 4-pentachloro-2-nitro-1, 3-butadiene 1 and 4-bromo-1, 1, 3, 4-tetrachloro-2-nitro-1, 3-butadiene
Volume 132 All articles Published: 8 October 2020 Article ID 0138
NAHIDE GULSAH DENIZ AESHA F SH ABDASSALAM MUSTAFA OZYUREK EMIN AHMET YESIL CIGDEM SAYIL
In this study, derivatives of new vitamin K3 were synthesized by the reactions of 2-methyl-1,4-naphthoquinone 1 with some heterocyclic ring substituted nucleophiles: 1-piperonylpiperazine 2, 1-(2-furoyl)piperazine 5, 1-(2-aminoethyl)piperidine 8, 1-(2-aminoethyl)pyrrolidine 10 and 2,6-dimethyl morpholine 12 in chloroform/triethylamine (TEA) or ethanol at room temperature. Their structures were characterized by Fourier transform infrared spectroscopy (FT-IR), 1H nuclear magnetic resonance (1H NMR),attached proton test nuclear magnetic resonance (APT-NMR) and mass spectrometry (MS). Newly synthesizedvitamin K3 derivatives (3, 4, 6, 7, 9, 11, 13, 14) have shown catalase inhibition activity and compound 13 has displayed remarkable potency against catalase enzyme. These compounds were also tested for their antioxidant capacity in vitro by CUPRAC method
Volume 132, 2020
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