Synthesis 2015; 47(13): 1899-1904
DOI: 10.1055/s-0034-1380518
paper
© Georg Thieme Verlag Stuttgart · New York

N-Bromosuccinimide as a Brominating Agent for the Transformation of N-H (or N-Benzyl) Ketoaziridines into Oxazoles

Heshmat A. Samimi*
Faculty of Science, Department of Chemistry, Shahrekord University, 115, Shahrekord, PO Box 115, Iran   eMail: samimi-h@sci.sku.ac.ir
,
Farkhondeh Dadvar
Faculty of Science, Department of Chemistry, Shahrekord University, 115, Shahrekord, PO Box 115, Iran   eMail: samimi-h@sci.sku.ac.ir
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Publikationsverlauf

Received: 15. Januar 2015

Accepted after revision: 09. März 2015

Publikationsdatum:
13. April 2015 (online)


Abstract

A novel procedure for the direct synthesis of 2,5-diarylox­azoles starting from N-H ketoaziridines is described. The method proceeds via the in situ formation of N-bromoketoaziridines in the presence of N-bromosuccinimide followed by the generation of intermediate azomethine ylides. A plausible mechanism for this transformation is proposed.