Highly efficient dialkylphosphate-mediated syntheses of hydantoins and a bicyclohydantoin under solvent-free conditions
作者:Vinod Kumar、Hemlata Rana、Ravish Sankolli、M.P. Kaushik
DOI:10.1016/j.tetlet.2011.09.029
日期:2011.11
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。