作者:Tile Gieshoff、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1002/anie.201603899
日期:2016.8
Pyrazolidin‐3,5‐diones are important motifs in heterocyclic chemistry and are of high interest for pharmaceutical applications. In classic organic synthesis, the hydrazinic moiety is installed through condensation using the corresponding hydrazine building blocks. However, most N,N′‐diaryl hydrazines are toxic and require upstream preparation owing to their low commercial availability. We present an
Pyrazolidin-3,5-diones是杂环化学中的重要基序,在制药应用中引起了极大的兴趣。在经典的有机合成中,使用相应的肼结构单元通过缩合安装肼部分。但是,大多数N,N'-二芳基肼是有毒的,由于其商业上的可获得性低,需要上游制备。我们提出了吡唑烷定-3,5-二酮的另一种可持续的合成方法,该方法采用易于获得的二腈作为前体,然后将其阳极氧化以提供N-N键。电转化是在恒定电流条件下在一个简单的不分格电池中进行的。