Asymmetric, Stereodivergent Synthesis of (−)-Clusianone Utilizing a Biomimetic Cationic Cyclization
作者:Jonathan H. Boyce、John A. Porco
DOI:10.1002/anie.201404437
日期:2014.7.21
We report a stereodivergent, asymmetric total synthesis of (−)‐clusianone in six steps from commercial materials. We implement a challenging cationic cyclization forging a bond between two sterically encumbered quaternary carbon atoms. Mechanistic studies point to the unique ability of formic acid to mediate the cyclization forming the clusianone framework.