Zhuang D, Jiang S, Wang Y, Wang X, Shen S, Yan R. I
2-Mediated [6 + 1] Annulation of Alkynes with MsONH
3OTf: Direct Synthesis of Benzo[
b]azepines.
Org Lett 2023;
25:3007-3012. [PMID:
37083284 DOI:
10.1021/acs.orglett.3c00790]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
The synthesis of benzo[b]azepines using protonated aminating reagent (MsONH3OTf) and alkynes through I2-mediated [6 + 1] annulation reaction has been developed. This protocol features excellent functional group tolerance and mild reaction conditions and affords the benzo[b]azepines in moderate to good yields under metal-free reaction conditions.
Collapse