Photochemical aryl radical cyclizations to give (E)-3-ylideneoxindoles

Photochemical aryl radical cyclizations to give (E)-3-ylideneoxindoles

(E)-3-Ylideneoxindoles are prepared in methanol in reasonable to good yields, as adducts of photochemical 5-exo-trig of aryl radicals, in contrast to previously reported analogous radical cyclizations initiated by tris(trimethylsilyl)silane and azo-initiators that gave reduced oxindole adducts.

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Veröffentlicht in:Molecules (Basel, Switzerland) Switzerland), 2014-09, Vol.19 (10), p.15891-15899
Hauptverfasser: Gurry, Michael, Allart-Simon, Ingrid, McArdle, Patrick, Gérard, Stéphane, Sapi, Janos, Aldabbagh, Fawaz
Format: Artikel
Sprache:eng
Schlagworte:
Chromatography
Cyclization
Free Radicals - chemical synthesis
Free Radicals - chemistry
heterocycle
Models, Molecular
Molecular Structure
Oxidants, Photochemical - chemical synthesis
Oxidants, Photochemical - chemistry
oxindole
Solvents
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Zusammenfassung:(E)-3-Ylideneoxindoles are prepared in methanol in reasonable to good yields, as adducts of photochemical 5-exo-trig of aryl radicals, in contrast to previously reported analogous radical cyclizations initiated by tris(trimethylsilyl)silane and azo-initiators that gave reduced oxindole adducts.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules191015891