Stereoselective photochemistry of substituted chalcones in solution and their antioxidant activities

YAYLI N., GOK Y., UCUNCU O., YASAR A., ATASOY C., SAHINBAS E., ...Daha Fazla

JOURNAL OF CHEMICAL RESEARCH, sa.3, ss.155-159, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2005
  • Doi Numarası: 10.3184/0308234054213573
  • Dergi Adı: JOURNAL OF CHEMICAL RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Index Chemicus (IC)
  • Sayfa Sayıları: ss.155-159
  • Anahtar Kelimeler: Antioxidants, Chalcones, Cyclobutanes, Photodimerisation
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Three new delta-truxinic type cyclobutanes [(1 beta,2 alpha)-di-(4-ethylbenzoyl)-(3 beta,4 alpha)-di-(4-methoxyphenyl)cyclobutane (4), (1 beta,2 alpha)-di-(4-nitrobenzoyl)-(3 beta,4 alpha)-di-(4-ethylphenyl) cyclobutane (5), and (1 beta,2 alpha)-di-(4-ethylbenzoyl)-(3 beta,4 alpha)-di(4-ethylphenyl) cyclobutane (6)] have been prepared by stereoselective photodimerisation of the corresponding chalcone monomers (1-3) in solution. NMR and MS of the dimers are discussed. The precursor chalcones and the dimeric products showed antioxidant activities to different extents with respect to the individual compounds as well as to the antioxidant methods used.