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.
我们报道了从商业材料中通过六个步骤立体发散、不对称全合成 (−)-clusianone。我们实施了具有挑战性的阳离子环化,在两个空间阻碍的季碳原子之间形成键。机理研究指出甲酸具有介导环化形成克鲁西亚酮骨架的独特能力。