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Dr. Kye-Simeon Masters and Prof. Dr. Stefan Bräse The Acetal Concept: Regioselective Access to ortho,ortho-Diphenols via Dibenzo-1,3-dioxepines Angewandte Chemie International Edition 52

Version of Record online: 23 NOV 2012 | DOI: 10.1002/anie.201207485

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Traditional methods are ill-suited for the synthesis of ortho,ortho-biphenols, a structural motif found in many polyphenolic natural products, as well as synthetically useful compounds such as the chiral ligands binol, vapol, and vanol. The new route consists of a radical-based reaction of an acetal-tethered biphenyl ether substrate and subsequent hydrolytic cleavage of the dibenzo-1,3-dioxepine intermediate.

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