Diana-Rivero R, Halsvik B, García Tellado F, Tejedor D. Short and Modular Synthesis of Substituted 2-Aminopyrroles.
Org Lett 2021;
23:4078-4082. [PMID:
33929868 PMCID:
PMC8483442 DOI:
10.1021/acs.orglett.1c01345]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We herein describe a simple and metal-free domino methodology to synthesize 2-aminopyrroles from alkynyl vinyl hydrazides. The domino reaction involves a novel propargylic 3,4-diaza-Cope rearrangement and a tandem isomerization/5-exo-dig N-cyclization reaction. By using this approach, a number of 2-aminopyrroles with diverse substituents have been prepared.
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