Substituted quinolinones 27.* Regioselective synthesis of pyrazolo-, oxazolo-, and triazepinoquinoline derivatives
作者:Mohamed Abass、Hany M. Hassanin、Hassan A. Allimony、Heba Hassan
DOI:10.1007/s10593-016-1813-y
日期:2015.11
and/or 1,4-diazanucleophiles has been studied under different reaction conditions. Condensation of 3-acetyl-4-(methylsulfanyl)quinolin-2(1H)-one with hydrazine, phenylhydrazine, hydroxylamine hydrochloride, semicarbazide, and thiosemicarbazide was carried out in different media. The structure of the reaction products was dependent not only on the reagent used, but also on the solvent and reaction temperature
已经研究了在不同反应条件下3-乙酰基-4-(甲基硫烷基)喹啉-2(1H)-对1,2-和/或1,4-二氮杂亲核试剂的反应性。在不同介质中进行3-乙酰基-4-(甲基硫烷基)喹啉-2(1H)-与肼,苯肼,羟胺盐酸盐,氨基脲和硫代氨基脲的缩合。反应产物的结构不仅取决于所用试剂,还取决于溶剂和反应温度。因此,以高收率选择性地反应生成吡唑并[3,4- b ]喹啉,吡唑并[4,3- c ]喹啉,恶唑并[5,4- b ]喹啉,恶唑并[4,5- c ]喹啉,异恶唑。 -[4,5- c]喹啉,[1,2,4] triazepino [5,6- b ]喹啉,和[1,2,4] triazepino [6,5- Ç除了开链缩合物,也分别]喹啉衍生物转化为各自的循环产物。根据新产品的分析和光谱数据确定其结构。