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Pd-NHC Catalyzed Biaryl Coupling by Direct C-H Activation-A Novel Strategy for the Synthesis of Dibenzocyclooctane Lignans.
Pd-NHC Catalyzed Biaryl Coupling by Direct C-H Activation-A Novel Strategy for the Synthesis of Dibenzocyclooctane Lignans.
- Source :
-
Synthetic Communications . 2011, Vol. 41 Issue 1, p41-51. 11p. - Publication Year :
- 2011
-
Abstract
- Cross-coupling reactions, such as Buchwald-Hartwig arylamination and direct intramolecular biaryl coupling by C-H activation, were carried out using various Palladium-N-heterocyclic carbenes (Pd-NHC) as catalysts. The yields were good to excellent. The latter strategy was adopted to transform two dibenzylbutane lignans, isolated from the leaves of Ocotea macrophylla (Lauraceae), into the corresponding dibenzocyclooctane lignans in good overall yields. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications® to view the free supplemental file. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PALLADIUM catalysts
*CARBENES
*LIGNANS
*BUTANE
*MOLECULES
*LEAVES
*ORGANIC synthesis
Subjects
Details
- Language :
- English
- ISSN :
- 00397911
- Volume :
- 41
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Synthetic Communications
- Publication Type :
- Academic Journal
- Accession number :
- 56043219
- Full Text :
- https://doi.org/10.1080/00397910903531755