I-Mediated [6 + 1] Annulation of Alkynes with MsONHOTf: Direct Synthesis of Benzo[]azepines.

Org Lett

State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 Gansu, China.

Published: May 2023


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Article Abstract

The synthesis of benzo[]azepines using protonated aminating reagent (MsONHOTf) and alkynes through I-mediated [6 + 1] annulation reaction has been developed. This protocol features excellent functional group tolerance and mild reaction conditions and affords the benzo[]azepines in moderate to good yields under metal-free reaction conditions.

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http://dx.doi.org/10.1021/acs.orglett.3c00790DOI Listing

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