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

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


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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.

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Publication History

Received: 12 March 2021

Accepted after revision: 29 March 2021

Accepted Manuscript online:
29 March 2021

Article published online:
20 April 2021

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