Electrochemical behavior of some ethylenedioxycoumarins: Cathodic dimerization


Tugral S., Berkem M. L.

JOURNAL OF MOLECULAR LIQUIDS, cilt.196, ss.363-369, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 196
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.molliq.2014.04.006
  • Dergi Adı: JOURNAL OF MOLECULAR LIQUIDS
  • Sayfa Sayıları: ss.363-369

Özet

Electrochemical behavior of recently synthesized 7,8-ethylenedioxy-4-methyl-2(H)-1-benzopyran-2-one, (1), 7,8-ethylenedioxy-2(H)-1-benzopyran-2-one, (2), and 6,7-ethylenedioxy-4-methy1-2(H)-1-benzopyran-2-one, (3) was studied using cyclic voltammetry at a hanging mercury drop electrode and controlled-potential coulometric techniques. The results indicated that an irreversible one-electron cathodic peak was observed for each compound in the potential range from 0.0 to -2.0 V. The coulometric experiments were performed in a low yield and the products were identified by FT-IR spectrometry, H-1 NMR and mass spectrometry. The coulometric results indicated a dimeric product for each compound. A mechanism for the electrodimerization pathway was proposed. (C) 2014 Elsevier B.V. All rights reserved.