New p-Substituted Salicylaldehyde Phenylhydrazone Derivatives: Synthesis, Characterization, and Antioxidant Activities.
A series of new p-nitrophenylhydrazone derivatives 3a-f were synthesized, characterized, and investigated for their antioxidant activities. These compounds have been synthesized by refluxing (p-nitrophenyl)hydrazine with 4-sub-stituted salicylaldehydes. The structures of the compounds were established by IR, (1)H- and (13)C-NMR, and MS data. The antioxidant activities (free radical-scavenging activity, reducing power, metal chelating activity, and total anti-oxidant activity) of the hydrazone compounds were evaluated. All of the compounds exhibited significant activities, while compound 3a, with the shortest chain, showed the highest antioxidant activity in all of the tests.
Department of Organic Chemistry, Faculty of Arts and Sciences, Yildiz Technical University, 34210, Esenler/Istanbul, Turkey.
Cigdem
C
Yorur-Goreci
Department of Biochemistry, Faculty of Arts and Sciences, Yildiz Technical University, 34210, Esenler/Istanbul, Turkey.
Nilay
N
Altas-Kiymaz
Department of Biochemistry, Faculty of Arts and Sciences, Yildiz Technical University, 34210, Esenler/Istanbul, Turkey.
Aysegul
A
Peksel
Department of Organic Chemistry, Faculty of Arts and Sciences, Yildiz Technical University, 34210, Esenler/Istanbul, Turkey.
Belkis
B
Bilgin-Eran
Department of Organic Chemistry, Faculty of Arts and Sciences, Yildiz Technical University, 34210, Esenler/Istanbul, Turkey.
Mustafa
M
Sonmez
Antioxidant activity; Metal chelating activity; Phenylhydrazones; Radical scavenging activity; Reducing power; Total antioxidant activity