Site selectivity in reactions of hydrazonoyl halides with heterocycles containing amino and thione groups leading to fused heterocycles of potential antimicrobial activity
作者:M. E. A. Khalifa、M. A. Amin、M. A. N. Mosselhi
DOI:10.1134/s1068162014010075
日期:2014.1
Reaction of hydrazonoyl halides with 6-(benzylidenamino)-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one and 2,3-diaminoquinazolin-4-one site-selectively afforded 3-substituted-7-(benzylidenamino)-1-phenyl-[1,2,4]triazolo[4,3-a]-pyrimidin-5(1H)-ones, [1,2,4,5]tetrazino[6,1-b]quinazolin-6(4H)-one, and 3-methyl-2-(4-substituted-phenylhydrazo)-[1,2,4]triazino[3,2-b]quinazolin-10-ones in good yields. The structures
腙酰卤与 6-(benzylidenamino)-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one 和 2,3-diaminoquinazolin-4-one 反应位点选择性地提供 3-取代-7-(benzylidenamino) )-1-苯基-[1,2,4]三唑并[4,3-a]-嘧啶-5(1H)-酮,[1,2,4,5]四嗪基[6,1-b]喹唑啉- 6(4H)-one 和 3-甲基-2-(4-取代-苯基肼基)-[1,2,4] 三嗪基 [3,2-b]quinazolin-10-ones 收率良好。通过化学证据及其 IR、1H、13C NMR 和 MS 光谱阐明了新合成化合物的结构。此外,一些产品针对不同的细菌和真菌菌株进行了筛选。