Stereoselective photochemistry of heteroaryl chalcones in solution and the antioxidant activities


YAYLI N. , UCUNCU O. , AYDIN E. , GOK Y., YASAR A. , BALTACI C., ...Daha Fazla

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, cilt.169, ss.229-234, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 169 Konu: 3
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.jphotochem.2004.06.015
  • Dergi Adı: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
  • Sayfa Sayıları: ss.229-234

Özet

Two new delta-truxinic type dimers; compound 1, rel-(1beta,2alpha)-di-(2-thienoyl)-rel-(3beta,4alpha)-di-(4-methoxy)phenylcyclobutane and compound 2, rel-(1beta,2alpha)-di-(2-thienoyl)-rel-(3beta,4alpha)-di-(3,4-dimethoxy)phenylcyclobutane were synthesized stereoselectively in solution by the dimerization of two known methoxy derivatives of heteroaryl chalcones (2E)-1-(2-thienyl)-3-(4-methoxy)-phenylpropen-1-one (3) and (2E)-1-(2thienyl)-3-(3,4-dimethoxy)-phenylpropen-1-one (4). Precursor chalcones and the dimeric products showed antioxidant activities of different extents with respect to individual compounds as well as to the antioxidant methods. (C) 2004 Elsevier B.V. All rights reserved.