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Synlett 2013; 24(4): 479-482
DOI: 10.1055/s-0032-1318131
DOI: 10.1055/s-0032-1318131
letter
Synthesis of Theaflavins via Biomimetic Oxidative Coupling Reactions
Weitere Informationen
Publikationsverlauf
Received: 11. Dezember 2012
Accepted after revision: 07. Januar 2013
Publikationsdatum:
23. Januar 2013 (online)


Abstract
Biomimetic synthesis of theaflavins from catechins was accomplished by using 2-nitrobenzenesulfonyl (Ns) as a protecting group for phenols to minimize undesired side reactions of the electron-rich aromatic rings. This enabled the construction of the complex benzotropolone core in a single-step oxidative coupling reaction.
Key words
theaflavins - 2-nitrobenzensulfonyl group - polyphenol - biomimetic synthesis - benzotropoloneSupporting Information
- for this article is available online at http://www.thieme-connect.com/ejournals/toc/synlett.
- Supporting Information