Abstract

A convenient method has been established for the stereoselective construction of a dihydrobenzofuran ring system found in several bioactive natural products. The final step of the synthesis involves the concerted and efficient intramolecular displacement of mesylate 12 to give 2′R,3′R-dihydrobenzofuran a bicyclic analog of 1. This route was based on a proposed biosynthetic pathway patterned on related rotenoids.

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