Synthesis of imidazolidin-4-ones and their conversion into 1,4-benzodiazepin-2-ones
作者:M. Hannoun、M. Žinić、D. Kolbah、F. Kajfež、N. BlaŽević
DOI:10.1002/jhet.5570180523
日期:1981.8
ethanol giving the bisimidazolidin-4-one derivatives IIa-e, which hydrolize, in acidic media into the corresponding mono-imidazolidin-4-ones IIIa-e. The compounds IIa-d were converted into 1,4-benzodiazepin-2-ones, under different conditions and in the presence of a variety of agents. The yields were between 50 and 100%.
α-卤代乙酰苯胺Ia-e与乙醇中的六胺反应,生成双咪唑啉丁-4-酮衍生物IIa-e,该衍生物在酸性介质中水解成相应的单咪唑啉丁-4-酮Ⅲa-e。在不同条件下,在多种试剂的存在下,化合物IIa-d被转化为1,4-苯并二氮杂-2-酮。产率在50%至100%之间。