Reaction of 2,3-disubstituted-N-arylsulfonylaziridines with isocyanates in presence of sodium iodide - stereospecific conversion of N-arylsulfonylaziridines to imidazolidinones
作者:Upender K. Nadir、Nupur Basu
DOI:10.1016/s0040-4020(01)87252-5
日期:1993.8
The reaction of 2,3-disubstituted arylsulfonylaziridines with isocyanates in presence of sodium iodide yielding 4,5-disubstituted-2-imidazolidinones is somewhat specific rather than a general reaction, but whenever the reaction occurs, it does so in a totally stereospecific manner where imidazolidinones produced have the same geometric configuration as that of the starting aziridines. The yield of
2,3-二取代的芳基磺酰基氮丙啶在碘化钠的存在下与异氰酸酯的反应生成4,5-二取代的-2-咪唑啉酮,这是特定的反应,而不是一般的反应,但是只要反应发生,它就会以完全立体定向的方式进行,其中产生的咪唑烷酮具有与起始氮丙啶相同的几何构型。咪唑烷酮的产率根据氮丙啶环碳上的取代基的性质及其几何形状而变化(0至60%)。