Iron-Catalyzed Cycloaddition of Amides and 2,3-Diaryl-2-azirines To Access Oxazoles via C-N Bond Cleavage.

J Org Chem

Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, P. R. China.

Published: February 2021

A novel and efficient iron-catalyzed cycloaddition reaction using readily available 2,3-diaryl-2-azirines and primary amides is reported. A wide range of trisubstituted oxazoles could be achieved in good yields with good functional group compatibility. In this transformation, two C-N bonds were cleaed and new C-N and C-O bonds were formed.

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http://dx.doi.org/10.1021/acs.joc.0c02843DOI Listing

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