Total synthesis of (±)-przewalskin B.
JOURNAL OF ORGANIC CHEMISTRY（2014）
Abstract
A concise total synthesis of przewalskin B was accomplished from readily available diene 7. Key features of the synthesis involved a Diels-Alder reaction to install the A ring, a Claisen-Johnson rearrangement to establish the spiroquaternary center, and a ring-closing metathesis (RCM) of a sterically crowded system to construct the cyclic enone moiety.
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Key words
total synthesis
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