5-Chromonylidene-hydantoins, 2-Thiohydantoins, Synthesis and Reaction with Some Alkylhalides, Some Amines and Some Diazoalkanes
作者:Youssef Lotfy Aly
DOI:10.1080/10426500490494769
日期:2005.1.1
Abstract 5-Chromonylidene-hydantoin, 2-thiohydantoin derivatives 2a–g, 3a,b were prepared by condensation of 3-formylchromones 1a,b with hydantoin, 2-thiohydantoin derivatives. Compounds 2a,b undergo Mannich reaction with formaldehyde and morpholine to give the corresponding Mannich prouducts 5a,b respectively. Reaction of 2a,b with alkylhalides namely Methyl iodide, Phenacly bromide, and Chloroacetic
摘要 通过将 3-甲酰基色酮 1a、b 与乙内酰脲、2-硫代乙内酰脲衍生物缩合制备了 5-亚氯代乙内酰脲、2-硫代乙内酰脲衍生物 2a-g、3a、b。化合物2a、b与甲醛和吗啉发生曼尼希反应,分别得到相应的曼尼希产物5a、b。2a,b 与烷基卤化物即甲基碘、苯那利溴化物和氯乙酸反应,分别得到相应的化合物 6a,b、7a,b、9a,b 和 10a,b。5-Chromonylidene-2-methylthio-hydantoin 6a,b 与仲胺和伯胺如吗啉、哌嗪、邻氨基苯甲酸和甘氨酸的反应得到了糖脒衍生物 11a,b, 12a,b, 13a,b 和 15a,b。2a,b 与 dazoalkanes 反应分别得到 16a,b 和 17a,b。