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, ss.155-159, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: Konu: 3
  • Basım Tarihi: 2005
  • Dergi Adı: JOURNAL OF CHEMICAL RESEARCH
  • Sayfa Sayıları: ss.155-159

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.