Base-catalyzed intramolecular condensation of tokinolide B.
Författare
Summary, in English
The novel pentacyclic compound cyclotokinolide B was obtained from the natural phthalide tokinolide B under basic conditions, via the chemoselective -enol lactone opening followed by a Michael addition of the generated carbanion to the enone and subsequent equilibration. This result confirms that some dimeric phthalides undergo intramolecular cyclizations in basic media.
Avdelning/ar
Publiceringsår
2003
Språk
Engelska
Sidor
2509-2512
Publikation/Tidskrift/Serie
Tetrahedron Letters
Volym
44
Issue
12
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Organic Chemistry
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0040-4039