A new method for the preparation of 5-acylidene and 5-imino substituted rhodanine derivatives and their antioxidant and antimicrobial activities


Ungoren S. H. , ALBAYRAK S. , Gunay A., Yurtseven L., Yurttas N.

TETRAHEDRON, cilt.71, ss.4312-4323, 2015 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 71 Konu: 25
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.tet.2015.04.069
  • Dergi Adı: TETRAHEDRON
  • Sayfa Sayısı: ss.4312-4323

Özet

Versatile syntheses of 5-imino or 5-acylidene substituted 1,3-thiazolidin-4-one derivatives are reported from alpha-dioxothiazole systems and phosphoranes via Wittig reactions. Antimicrobial and antioxidant activity of the compounds were evaluated. 5-Carbonylmethylene substituted 2-thioxo-1,3-thiazolidines have better antioxidant properties than the 5-arylimino substituted ones. The % inhibition value of the compound 3 (90.8%) was near to that of standard BHT (93.6%) at the same concentration. Compounds 5 and 15, which have the alkyliden-amide group at the C-5 position of the 1,3-thiazolidine ring showed the highest antimicrobial activities among the synthesized compounds. (C) 2015 Elsevier Ltd. All rights reserved.