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


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Onar H. , Vardar B. A.

BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA, cilt.32, ss.175-178, 2018 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 32 Konu: 1
  • Basım Tarihi: 2018
  • Doi Numarası: 10.4314/bcse.v32i1.17
  • Dergi Adı: BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
  • Sayfa Sayısı: ss.175-178

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.