- Turkish Journal of Chemistry
- Vol: 28 Issue: 4
- Stereoselective Photochemistry of Methoxy Chalcones in Solution and Their Radical Scavenging Activit...
Stereoselective Photochemistry of Methoxy Chalcones in Solution and Their Radical Scavenging Activity
Authors : Nurettin Yayli, Osman Üçüncü, Ahmet Yaşar, Yaşar Gök
Pages : 515-521
View : 16 | Download : 3
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :The photochemical dimerization of 3 known methoxy derivatives of chalcones, (2E)-1-(2-methoxy)phenyl-3-phenylpropen-1-one (1), (2E)-1-(3-methoxy)phenyl-3-phenyl-propen-1-one (2), and (2E)-1-(4-methoxy) phenyl-3-phenylpropen-1-one (3), yielded 3 new d -truxinic type dimers in solution: rel-(1b ,2a)- di-(2-methoxy)-benzoyl-rel-(3b ,4a )-diphenylcyclobutane (4), rel-(1b ,2a )-di-(3-methoxy)benzoyl-rel-(3b, 4a )-diphenylcyclobutane (5), and rel-(1b ,2a)- di-(4-methoxy)benzoyl-rel-(3b ,4a )-diphenylcyclobutane (6), stereoselectively. Precursor chalcones showed high superoxide radical scavenging activity although the dimers were inactive.Keywords : Chalcone, Photodimerizations, Solution, Dimers, Radical Scavenging Activity