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Pd-NHC catalyzed biaryl coupling by direct C-H Activation-A Novel strategy for the synthesis of dibenzocyclooctane lignans

  • 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 (R) to view the free supplemental file.

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Author:Ericsson David Coy, Luis Enrique Cuca, Michael Sefkow
ISSN:0039-7911 (print)
Parent Title (English):Synthetic communications : an international journal for rapid communication of synthetic organic chemistry
Publisher:Taylor & Francis Group
Place of publication:Philadelphia
Document Type:Article
Year of first Publication:2011
Year of Completion:2011
Release Date:2017/03/26
Tag:Cross-coupling reactions; N-heterocyclic carbenes (NHC); dibenzocyclooctane; dibenzylbutane; lignans
First Page:41
Last Page:51
Funder:DAAD (Deutscher Akademischer Austausch Dienst)
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Peer Review:Referiert