SYNTHESIS AND ANTIOXIDANT ACTIVITY OF NOVEL 8-FORMYL-4-SUBSTITUED COUMARINS

Onar H. C., Vardar B. A.

BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA, cilt.32, sa.1, ss.175-178, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Sayı: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.4314/bcse.v32i1.17
  • Dergi Adı: BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.175-178
  • İstanbul Üniversitesi Adresli: Evet

Özet

4-Methyl-8-formyl- and 4-phenyl-8-formyl coumarins have been synthesized by Pechmann reaction using oxalic acid catalyst for the first time. 4-Propyl-7-hydroxy-, and 4-methyl-7-methoxy coumarins have also been accomplished by this catalyst for the first time. They have been characterizated by IR, H-1-NMR, C-13-NMR, mass and elemental analysis. Furthermore, the obtained coumarins were compared according to antioxidant activity by DPPH method.