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dc.contributor.advisorBakır, Temel Kan
dc.contributor.authorLawag, Jamal Bashir Masaud
dc.date.accessioned2020-12-06T11:58:55Z
dc.date.available2020-12-06T11:58:55Z
dc.date.submitted2019
dc.date.issued2019-11-28
dc.identifier.urihttps://acikbilim.yok.gov.tr/handle/20.500.12812/100182
dc.description.abstractBu tez çalışmasında yedi yeni Schiff bazı, monotiyokarbohidrazonlardan ve 5-kloro isatinden hazırlandı. Monotiyokarbohidrazonlar, reaksiyon tiyokarbohidrazit ve sübstitüe edilmiş aldehitler ile geri soğutucu altında etanol varlığında sentezlendi. Sentezlenen benzotiyokarbohidrazon, 4-hidroksi benzotiyokarbohidrazon, 3-etoksi-4-hidroksi benzotiyokarbohidrazon, 3,5-dimetoksi-4-hidroksi benzotiyokarbohidrazon ve 4-N,N, dimetil benzotiyokarbohidrazon moleküllerinin 5- kloro isatin ile asidik ortamda geri akış altında reaksiyonundan N1-(5-Kloro-2-oksoindolin-3-ylidin) Shiff bazları elde edildi. Ürünlerin kimyasal yapıları 1H-NMR, 13C-NMR, IR ve elementel analiz ile doğrulandı. Erime noktası, renk ve çözünürlük gibi fizikokimyasal özellikleri belirlendi. Tüm bileşiklerin in vitro antioksidan aktivitesi, 1,1-Difenil-2-Pikril Hidrazil (DPPH) serbest radikal temizleme metoduyla belirlendi. Moleküllerin ve kullanılan standardın antioksidan aktiviteleri Gallik asit> 3,5-dimetoksi-4-hidroksi benzotiyokarbohidrazon > 3-etoksi-4-hidroksi benzotiyokarbohidrazon > 4-hidroksi benzotiyokarbohidrazon > Benzotiyokarbohidrazon > N1-(5-kloro-2-oksoindolin-3-ylidin) 4-N,N, dimetil benzotiyokarbohidrazon > N1-(5-kloro-2-oksoindolin-3-ylidin) 3,etoksi-4-hidroksi benzotiyokarbohidrazon > 4-N,N, dimetil benzotiyokarbohidrazon > N1-(5-kloro-2-oksoindolin-3-ylidin) 3,5-dimetoksi-4-hidroksi benzotiyokarbohidrazon > N1-(5-kloro-2-oksoindolin-3-ylidin) 4, hidroksi benzotiyokarbohidrazon > N1-(5-kloro-2-oksoindolin-3-ylidin) benzotiyokarbohidrazon sıralamasını izledi.Anahtar Kelimeler: N1-(5-kloro-2-oksoindolin-3-ylidin) benzotiyokarbohidrazon, Antioksidan Aktivite, DPPH metod, NMR spektroskopileri.
dc.description.abstractIn this thesis, seven new Schiff bases were prepared from monothiocarbohydrazones and 5-chloro isatin. The monothiocarbohydrazones were synthesized in the presence of ethanol under reflux with the reaction thiocarbohydrazide and substituted aldehydes. The reaction of synthesized benzothiocarbohydrazone, 4-hydroxy benzothiocarbohydrazone, 3-ethoxy-4-hydroxyl benzothiocarbohydrazone, 3,5-dimethoxy-4-hydroxyl benzothiocarbohydrazone and 4-N,N,dimethly benzothiocarbohydrazone with 5-chloro isatin in acidic medium under reflux with N1- (5-Chloro-2-oxoindolin-3-ylidene) Shiff bases were obtained. The chemical structures of the products were confirmed by 1H-NMR, 13C-NMR, IR and elemental analysis. Physicochemical properties such as melting point, color and solubility were determined. In vitro antioxidant activity of all compounds was determined by 1,1-Diphenyl-2-Picril Hydrazil (DPPH) free radical scavenging method. Antioxidant activities of molecules and standard used gallic acid> 3,5-dimethoxy-4-hydroxyl benzothiocarbohydrazone> 3-ethoxy-4-hydroxyl benzothiocarbohydrazone> 4-hydroxy benzothiocarbohydrazone> benzothiocarbohydrazone> N1- (5-chloro-2-oxoindolin-3-ylidene) ) 4-N,N, dimethly benzothiocarbohydrazone> N1- (5-chloro-2-oxoindolin-3-ylidene) 3, ethoxy-4-hydroxyl benzothiocarbohydrazone> 4-N,N, dimethly benzothiocarbohydrazone> N1- (5-chloro-) 2-oxoindolin-3-ylidene) 3,5-dimethoxy-4-hydroxyl benzothiocarbohydrazone> N1- (5-chloro-2-oxoindolin-3-ylidene) 4, hydroxy benzothiocarbohydrazone> N1- (5-chloro-2-oxoindoline- 3-ylidene) benzothiocarbohydrazone.Key Words: N1-(5-chloro-2-oxoindolin-3-ylidene) benzothiocarbohydrazone, Antioxidant Activity, DPPH method, NMR spectroscopy.en_US
dc.languageTurkish
dc.language.isotr
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsAttribution 4.0 United Statestr_TR
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectKimyatr_TR
dc.subjectChemistryen_US
dc.titleİsatin ve tiyokarbohidrazon içeren Shiff bazlarının sentezi, karakterizasyonu ve antioksidan aktivitelerinin incelenmesi
dc.title.alternativeSynthesis, characterization and antioxidant activities of Shiff bases containing isatin and thiocarbohydrazone
dc.typemasterThesis
dc.date.updated2019-11-28
dc.contributor.departmentKimya Anabilim Dalı
dc.identifier.yokid10298864
dc.publisher.instituteFen Bilimleri Enstitüsü
dc.publisher.universityKASTAMONU ÜNİVERSİTESİ
dc.identifier.thesisid584532
dc.description.pages65
dc.publisher.disciplineDiğer


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