Synthesis 2021; 53(17): 3101-3109
DOI: 10.1055/a-1468-8275
special topic
Bond Activation – in Honor of Prof. Shinji Murai

Synthesis of Fused Diaziridine Derivatives from Cyclic Secondary Amines by Utilizing N-Bromosulfonamides as an Aminating Reagent

Autoren


This work was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers JP19H02716 (S.M.) and JP20K05511 (K.K.).


Graphical Abstract

In memory of Prof. Dr. Kilian Muñiz (1970−2020)

Abstract

The synthesis of a series of fused diaziridines, which are difficult to access by existing methods, was achieved by the reaction of cyclic secondary amines with p-toluenesulfonamide in the presence of N-bromosuccinimide (NBS) and a suitable base. This oxidation system enables the efficient in situ formation of the key intermediates, which are N-bromoamines (a precursor of cyclic imines) and N-bromosulfonamides. In addition, an alternative method using N-bromo-N-sodio-p-toluenesulfonamide (bromamine-T) in the presence of a catalytic amount of CF3CO2H for the synthesis of fused diaziridines is also reported.

Supporting Information



Publikationsverlauf

Eingereicht: 12. März 2021

Angenommen nach Revision: 29. März 2021

Accepted Manuscript online:
29. März 2021

Artikel online veröffentlicht:
20. April 2021

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