Fatty Acids in Heterocyclic Synthesis Part XII: Synthesis of Surfactants from Pyrazole, Isoxazole, Pyrimidine and Triazine, Incorporating the 1,3,4-Thiadiazole Moiety Having Dyeing and Antimicrobial Activities
作者:Mahasen S. Amine、Amal A. Mahmoud、Samy K. Badr、Alaa S. Gouda
DOI:10.1007/s11743-011-1301-4
日期:2012.3
tautomer (3B) and produced triazine derivatives (4). Additionally, the diazonium chloride (2) was coupled with alkaline 2‐naphthol and produced 2‐(5‐heptadecyl‐[1,3,4]thiadiazol‐2‐yl)‐1,2‐dihydro‐3‐oxa‐1,2‐diaza‐cyclopenta[a]naphthalene (8). UV–visible spectra of the synthesized colored compounds (2‐8) showed λ max at 374–398 nm, while screening these compounds in vitro against micro‐organisms (including
标题化合物由2-氨基-5-十七烷基[1,3,4]噻二唑(1)制备。将(1)重氮化生成(2),再与活性亚甲基化合物偶合,得到偶氮⇌肼衍生物(3A,3B)a - d。已发现向这些互变异构体中添加不同的亲核试剂具有区域特异性。因此,亲核氮水合肼:如,盐酸羟胺和硫脲经由偶氮互变异构体混合(反应3A)分别以得到吡唑,异恶唑并嘧啶(5 - 7),同时通过肼基互变异构体(3B)使碳亲核试剂作为苯基异氰酸酯发生反应,并生成三嗪衍生物(4)。此外,将重氮氯化物(2)与碱性2-萘酚偶合,生成2-(5-十七烷基-[1,3,4]噻二唑-2-基)-1,2-二氢-3-氧杂1- 2-二氮杂-环戊四[a]萘(8)。合成的有色化合物(的紫外-可见光谱2 - 8)显示出λ最大在374-398纳米,而体外筛选这些化合物对抗微生物(包括结构-活性关系研究SAR)显示高抗菌和中等抗真菌活性。化合物的丙氧基化1,3,5,6,7和8与