Facile radical mediated synthesis of azetidin-2,3-diones: potential synthons for biologically active compounds
作者:Shamsher S. Bari、Mehmood S. Magtoof、Aman Bhalla
DOI:10.1007/s00706-010-0346-9
日期:2010.9
operationally simple and efficient approach for the synthesis of azetidin-2,3-diones is described. The starting substrate 2-(2-bromobenzyloxy)ethanoyl chloride was treated with appropriate Schiff’s bases in triethylamine and dichloromethane to afford 3-(2-bromobenzyloxy)azetidin-2-ones. The synthesis of azetidin-2,3-diones was successfully achieved via radical mediated rearrangement of appropriately substituted
摘要描述了一种用于合成氮杂环丁烷-2,3-二酮的操作简单有效的方法。在三乙胺和二氯甲烷中,用合适的席夫碱处理起始底物2-(2-溴苄氧基)乙酰氯,得到3-(2-溴苄氧基)氮杂环丁烷-2-酮。氮杂环丁烷-2,3-二酮的合成是通过使用正三氢化锡氢化物和AIBN在回流的干燥苯中通过自由基介导的适当取代的3-(2-溴苄氧基)氮杂环丁烷-2-酮的自由基介导的重排而成功完成的。 图形概要