Browsing by Author "Yaşar, A."
Now showing items 1-5 of 5
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Microwave-assisted synthesis of 4?-azaflavones and their n-alkyl derivatives with biological activities
Yaşar, A.; Akapinar, K.; Burnaz, N.A.; Küçük, M.; Karaoğlu, S.A.; Doğan, N.; Yayh, N. (0-Belirlenecek, 2008)4?-Azaflavone (=2-(pyridin-4-yl)-4H-1-benzopyran-4-one; 4) and 3-[(pyridin-4-yl)methyl]-4?-azaflavone (5) were synthesized by a simple environmentally friendly microwave-assisted one-pot method through the cyclization of ... -
Photochemistry of nitro-substituted (E)-2-azachalcones with theoretical calculations and biological activities
Yayli, N.; Üçüncü, O.; Yaşar, A.; Yayli, N.; Burnaz, N.A.; Karaoğlu, S.A.; Küçük, M. (0-Belirlenecek, 2009)Four new stereoselective dimerization products (4a-c, 5) of m- and p-nitro-substituted (E)-2-azachalcones (2 and 3) were synthesized and tested for antimicrobial and antioxidant activities. Compounds 1-3 showed very good ... -
Photodimerizations of hydroxy- and benzoylated 4-azachalcones and quantum chemical investigation of the reactions
Photodimerization reactions of compounds 4-6 gave four new cyclobutane-containing compounds (7-9) with full control over the stereochemistry at the four stereogenic centers. These new cyclobutane- containing compounds had ... -
Synthesis of methyl (E)-2?,4?-thiazachalcones and their N-alkyl derivatives, photochemistry with theoretical calculations and antimicrobial activities
Usta, A.; Yaşar, A.; Yayli, N.; Karaoğlu, S.A.; Yayli, N. (0-Belirlenecek, 2009)A series of 9 new (E) -thiazachalcones (1-3), and their N -alkyl substituted derivatives (4-6), and stereoselective dimerization products (7-9) were synthesized, then tested for antimicrobial activity against all test ... -
Synthesis, configuration, and antimicrobial properties of novel substituted and cyclized '2?,3?-thiazachalcones'
Usta, A.; Yaşar, A.; Yilmaz, N.; Güleç, C.; Yayli, N.; Karaoğlu, Ş.A.; Yayli, N. (0-Belirlenecek, 2007)Nine new thiazachalcone-based drugs, compounds 1-9, were prepared and fully characterized. The configurations of the photochemical-dimerization products 7-9 were rationalized by semi-empirical calculations. Both the ...
