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© Georg Thieme Verlag Stuttgart · New York

The Double Oxa-Michael-Aldol Condensation: Straightforward Access to Dimeric Tetrahydroxanthenones

Carl Friedrich Nising, Anne Friedrich, Stefan Bräse*
Institute of Organic Chemistry, University of Karlsruhe (TH), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
Fax: +49(721)608858; e-Mail: braese@ioc.uka.de;