Stereoselective photochemistry of heteroaryl chalcones in solution and the antioxidant activities


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

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, vol.169, no.3, pp.229-234, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 169 Issue: 3
  • Publication Date: 2005
  • Doi Number: 10.1016/j.jphotochem.2004.06.015
  • Title of Journal : JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
  • Page Numbers: pp.229-234

Abstract

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.