Abstract 2-Aminoimidazolidin-4-ones have been synthesized by using di-2-pyridyl thiocarbonate (DPT), taking the thioureas tethered to amides as the starting materials. Both the primary amides and secondary amides have been subjected to this cyclization method and in general this simple and convenient method was found to ensure good to excellent yields (81–99%). GRAPHICAL ABSTRACT
摘要
2-氨基咪唑啉-4-酮以
硫代
碳酸酯二-2-
吡啶酯(D
PT)为原料,以与酰胺相连的
硫脲为起始原料,合成了
2-氨基咪唑啉-4-
酮类化合物。伯酰胺和仲酰胺都经过这种环化方法,通常发现这种简单方便的方法可确保良好的收率(81-99%)。图形概要