were employed as the mild reagent to hydrolyze and cyclize the substrate in one step to give quantitative yields of the desired products. Syntheses of multivalent hydantoins viz bis-hydantoin, bicyclohydantoin have potentially widened the scope and applicability of the present method. Solvent-free conditions and very easy work-up procedure make the reaction convenient and eco-friendly. Single crystal
已经通过新策略从基于
氰酰胺的前体,即N-
氰基-N-烷基/芳基
氨基
乙酸甲酯合成了不同取代的乙内酰
脲。
磷酸二烷基酯用作温和的试剂,可在一个步骤中
水解和环化底物,以定量获得所需产物。多价乙内酰
脲即
双乙内酰
脲,双环乙内酰
脲的合成潜在地扩大了本方法的范围和适用性。无溶剂条件和非常简单的后处理程序使反应变得方便且环保。还报道了一些代表性化合物的单晶结构。