Intramolecular radical coupling of a phenolic enolate: Oxidative fragmentation of the spirodiketone intermediate
โ Scribed by A. Leboff; A.-C. Carbonnelle; J.-P. Alazard; C. Thal; A.S. Kende
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- French
- Weight
- 134 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
Ferricynnide oxidation of the dianion of the pbenolic B-diketone 6b in basic conditions effects intramolecular radical coupling to form the spirocyclic diketone I which leads to the hydroxy tetralone 8 via an oxidative fragmentation process. _ Reactions in Steroid Chemistry",
๐ SIMILAR VOLUMES
The bis-diaryl ether cross-linked amino acid fragment, which constitutes the upper part of a vancomycin aglycone framework, was synthesized for the first time using an enzymatic oxidative phenolic coupling methodology. This was achieved via two peroxidase-catalyzed reactions of three amino acid deri
Radical and non-radical features have been observed in the oxidative coupling of xylenol into quinones and polymers. This paper presents an attempt to determine the role of organic radicals in the reaction. The observations suggest that they are involved directly in the chain growth and that catalys