Access to Pyrazolidin‐3,5‐diones through Anodic N–N Bond Formation
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
Electrochemical Formation of 3,5-Diimido-1,2-dithiolanes by Dehydrogenative Coupling
作者:Valentina M. Breising、Tile Gieshoff、Anton Kehl、Vincent Kilian、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1021/acs.orglett.8b02904
日期:2018.11.2
A synthetic approach to the cyclic disulfide moiety of 3,5-diimido-1,2-dithiolane derivatives starting with readily available precursors including the electrochemical coupling of dithioanilides is developed. The electrochemical key step provides sustainable synthetic access in high yields, using a very simple electrolysis setup.