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 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 169 Issue: 3
  • Publication Date: 2005
  • Doi Number: 10.1016/j.jphotochem.2004.06.015
  • Journal Name: Journal of Photochemistry and Photobiology A: Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.229-234
  • Keywords: heteroaryl chalcone, photodimerisation, solution, antioxidant, radical scavenging, DIMERIZATION, THIOPHENE, CRYSTALS, BEARING, ANALOGS
  • Karadeniz Technical University Affiliated: Yes

Abstract

Two δ-truxinic type dimers; compound 1, rel-(1β,2α)-di- (2-thienoyl)-rel-(3β,4α)-di-(4-methoxy)phenyleyelobutane and compound 2, rel-(1β,2α)-di-(2-thienoyl)-rel-(3β,4α) -di-(3,4-dimethoxy)phenyleyelobutane 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-(2-thienyl)-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. © 2004 Elsevier B.V. All rights reserved.