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Beilstein J. Org. Chem. 2021, 17, 504–510, doi:10.3762/bjoc.17.44
Graphical Abstract
Figure 1: Selected pyrrole-containing natural products, drugs, agrochemicals, and functional materials.
Scheme 1: Transformation of N-sulfonyl-1,2,3-triazoles to pyrroles via metal iminocarbenes.
Scheme 2: Transannulation of triazoles 2 with phenylacetylene.
Scheme 3: Transannulation of N-perfluoroalkyl-1,2,3-triazoles with aliphatic alkynes.
Scheme 4: Reaction of 1a with hex-5-ynenitrile.
Scheme 5: Metalation and carboxylation of in situ-prepared pyrrole 2a.
Scheme 6: Plausible mechanism for rhodium-catalyzed transannulation of N-perfluoroalkyl-1,2,3-triazoles with ...