Thermal Aza-Bergman Cyclization of o-Alkynylaryl Isocyanides with Organic Diselenide, Ditelluride, and Iodine Leading to 2,4-Difunctionalized Quinolines

Thermal Aza-Bergman Cyclization of o-Alkynylaryl Isocyanides with Organic Diselenide, Ditelluride, and Iodine Leading to 2,4-Difunctionalized Quinolines

Thermal aza-Bergman cyclization of o-alkynylaryl isocyanides has been achieved in the presence of organic dichalcogenides. The reactions can be induced upon heating at 40 °C to afford the corresponding 2,4-dichalcogenated quinolines. In addition, similar conditions can be also employed with iodine t...

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Veröffentlicht in:Bulletin of the Chemical Society of Japan 2011-07, Vol.84 (7), p.791-793
Hauptverfasser: Mitamura, Takenori, Ogawa, Akiya
Format: Artikel
Sprache:eng
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Zusammenfassung:Thermal aza-Bergman cyclization of o-alkynylaryl isocyanides has been achieved in the presence of organic dichalcogenides. The reactions can be induced upon heating at 40 °C to afford the corresponding 2,4-dichalcogenated quinolines. In addition, similar conditions can be also employed with iodine to form 2,4-diiodoquinolines.
ISSN:0009-2673
1348-0634
DOI:10.1246/bcsj.20110041