Synthesis, characterization, and antioxidant activities of new 1,3,4-thiadiazoles based on benzoic acid Benzoik asit temelli yeni 1,3,4-tiyadiazollerin sentezi, karakterizasyonu ve antioksidan aktiviteleri
El-Cezeri Journal of Science and Engineering, cilt.8, sa.1, ss.155-163, 2021 (Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 8 Sayı: 1
- Basım Tarihi: 2021
- Doi Numarası: 10.31202/ecjse.794370
- Dergi Adı: El-Cezeri Journal of Science and Engineering
- Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.155-163
- Anahtar Kelimeler: 1,3,4-Thiadiazoles, DPPH, Spectroscopic methods, Structure-activity relationship
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
Received/Geliş: 13.09.2020 Accepted/Kabul: 21.10.2020 Abstract: N-aryl-1,3,4-thiadiazole derivatives were obtained by cyclization reaction of benzoic acid and N-arylthiosemicarbazides in the presence of phosphorous oxychloride (POCl3). FT-IR,1H-NMR, and13C-NMR, spectroscopic methods, and elemental analysis were used to elucidate the identification of the synthesized molecules. The in vitro antioxidant activity of the synthesized molecules was analyzed with the 1,1-diphenyl-2-picryl hydrazyl (DPPH) free-radical–trapping process. IC50 values of these molecules were measured from 25.17 to 43.55 M. Among the synthesized compounds, compound II had the best antioxidant activity. Moreover, this work explained the structure-activity relationship of the obtained molecules with different substituents in radical trapping reactions.