Visible-Light-Promoted Selenylative Radical Cyclization of 2-Vinyl-N-Aryl Imines to 3H-Indoles via Oxygen Photosensitization.
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DOI: 10.1021/acs.orglett.5c02670
Abstract: A visible-light-promoted tandem selenylative radical cyclization of 2-vinyl-N-aryl imines to 3H-indoles was developed involving a series of selenyl radical addition, 5-endo-trig cyclization, and redox steps. The roles of triplet oxygen (3O2) and rhodamine-sensitized singlet oxygen… read more here.
Keywords: light promoted; visible light; cyclization vinyl; cyclization ... See more keywords
Highly Selective Visible-Light-Induced Cascade Cyclization of Vinyl Sulfoxonium Ylides with Azides: A Novel Synthetic Approach to Trisubstituted Furans
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DOI: 10.1039/d4qo02195a
Abstract: A simple protocol for the synthesis of trisubstituted furans via visible-light-driven regioselective cascade cyclization of vinyl sulfoxonium ylides with azides has been achieved. The reaction proceeds through the formation of... read more here.
Keywords: sulfoxonium ylides; trisubstituted furans; vinyl sulfoxonium; visible light ... See more keywords
Visible-Light-Mediated Tandem Sulfonylation/Cyclization of Vinyl Azides with Sulfonyl Hydrazines for the Synthesis of 6-(Sulfonylmethyl)phenanthridines under Mild Conditions
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DOI: 10.1055/s-0037-1611758
Abstract: A visible-light-mediated tandem sulfonylation/cyclization of vinyl azides with sulfonyl hydrazines was developed that provides an efficient and simple strategy for the synthesis of valuable 6-(sulfonylmethyl)phenanthridines with a broad substrate scope and satisfactory yields under mild… read more here.
Keywords: sulfonylation cyclization; visible light; cyclization vinyl; mediated tandem ... See more keywords