Journal
ORGANIC CHEMISTRY FRONTIERS
Volume 6, Issue 14, Pages 2319-2323Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9qo00206e
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- Alexander-von-Humboldt Foundation
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The cyclization of acetanilides with alkyne derivatives has been accomplished via a direct C-H functionalization/cyclization pathway in the presence of a photoredox catalyst. The combination of a readily available Rh(III) and photoredox catalyst under irradiation with 11 W CFL afforded not only indoles but also pyrrole derivatives in good yields. Mechanistic studies provide evidence for the independent role of each catalyst. In addition, a similar efficiency of the cyclization reaction was achieved with a heterogeneous photoredox catalyst.
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