Ajani, O. O. and Nwinyi, Obinna
SYNTHESIS AND EVALUATION OF ANTIMICROBIAL ACTIVITY OF PHENYL
AND FURAN-2-YL[1,2,4] TRIAZOLO[4,3-a]QUINOXALIN-4(5H)-ONE
AND THEIR HYDRAZONE PRECURSORS.
Canadian Journal of Pure and Applied Sciences, 3 (3).
A variety of 1-(s-phenyl)-[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-one (3a-3h) and 1-(s-furan-2-yl)-[1,2,4]triazolo[4,3-
a]quinoxalin-4(5H)-one (5a-d) were synthesized from thermal annelation of corresponding hydrazones (2a-h) and (4a-d)
respectively in the presence of ethylene glycol which is a high boiling solvent. The structures of the compounds prepared
were confirmed by analytical and spectral data. Also, the newly synthesized compounds were evaluated for possible
antimicrobial activity. 3-(2-(4-hydroxylbenzylidene)hydrazinyl)quinoxalin-2(1H)-one (2e) was the most active
antibacterial agent while 1-(5-Chlorofuran-2-yl)-[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-one (5c) stood out as the most
potent antifungal agent.
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