ChemInform Abstract: Radical Reactions Leading to Substituted Coumarins.
โ Scribed by Anne Giraud; Patrice Vanelle; Luc Giraud
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 29 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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โฆ Synopsis
Radical Reactions Leading to Substituted Coumarins.
-Quinoline chlorides (I) undergo a photostimulated reaction with the lithium salt (II) of 4-hydroxycoumarin to yield the corresponding 3-alkylated coumarins (III) via an electron transfer mechanism (S RN 1).
๐ SIMILAR VOLUMES
Ceric Ammonium Nitrate Promoted Free Radical Cyclization Reactions Leading to ฮฒ-Lactams. -Treatment of enamides (I) or (V) with cerium ammonium nitrate (CAN) generates ฮฑ-carbamoyl radicals which undergo 4-exo-trig cyclization followed by methanol quenching to provide the functionalized ฮฒ-lactams. T