TY  - JOUR
TI  - Preparation and antimicrobial activity evaluation of some quinoline derivatives containing an azole nucleus
AB  - Quinoline-2-carbohydrazide (2) obtained from quinaldic acid (1) was converted to the corresponding carbothioamide 3 and carboxamide 6 by treatment with benzyliso(thio)cyanate. The basic treatment of 3 and 6 yielded the corresponding 1,2,4-triazole derivatives 4 and 7. The synthesis of 5-(quinolin-2-yl)-1,3,4- oxadiazol-2-thiol (9) was performed from the reaction of 1 with CS2 in basic media. The Mannich reaction of compounds 4, 7, and 9 resulted in the formation of aminoalkylated derivatives 5a-c, 8, and 10a,b. The condensation of 1 with thiosemicarbazide, carbohydrazide, or thiocarbohydrazide gave the corresponding 1,2,4-triazole derivatives (11-13). The treatment of 4-amino-5-(quinolin-2-yl)-4H -1,2,4-triazole-3-thiol (13) with 4-chlorophenacyl bromide caused the formation of fused triazolothiadiazine 14. The condensation of 13 with 4-methoxybenzaldehyde generated the corresponding Schiff base 15. The newly synthesized compounds were characterized by elemental analyses, IR, $^1H-NMR$, $^{13} C-NMR$, and mass spectra. The antimicrobial activity study revealed that some of the newly synthesized compounds showed good to moderate activity against a variety of microorganisms.
AU  - DEMİRCİ, Serpil
AU  - DEMİRBAŞ, NESLİHAN
AU  - DEMİRBAŞ, Ahmet
AU  - Alpay Karaoğlu, Şengül
AU  - ÖZYANIK, Muhammet
AU  - BEKTAŞ, Hakan
PY  - 2012
JO  - Turkish Journal of Chemistry
VL  - 36
IS  - 2
SN  - 1300-0527
SP  - 233
EP  - 246
DB  - TRDizin
UR  - http://search/yayin/detay/128515
ER  -