- Turkish Journal of Chemistry
- Vol: 41 Issue: 1
- Synthesis and antifungal activity of new dihydrofurocoumarins and dihydrofuroquinolines
Synthesis and antifungal activity of new dihydrofurocoumarins and dihydrofuroquinolines
Authors : Asli Ustalar, Mehmet Yilmaz, Agim Osmani, Sema Aşkin Keçeli
Pages : 80-88
View : 7 | Download : 7
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :We investigated the radical addition of 4-hydroxycoumarin (1a) and 4-hydroxyquinoline (1b) with conjugated dienes ({2a-f) mediated by cerium(IV) ammonium nitrate (CAN) resulting in ethenyl substituted 2,3-dihydrofurocoumarin (3a-f) and 3,5-dihydrofuroquinoline (3g, 3h) compounds in moderate to good yields. All compounds were characterized by spectroscopic methods (IR, MS, and $^{1}$H and $^{13}$C NMR) and microanalysis. Antifungal activities of these compounds were investigated against the fungi Candida albicans, C. parapsilosis, C. krusei, C. glabrata, C. tropicalis, and Aspergillus fumigatus.Keywords : Dihydrofurocoumarin, dihydrofuroquinoline, cerium(IV) ammonium nitrate, radical cyclization