Synthesis of Highly Enantio-Enriched Heliespirones A and C by a Diastereoselective Aromatic Claisen Rearrangement
作者:Philip Norcott、Christopher S. P. McErlean
DOI:10.1071/ch18019
日期:——
Computational methods were used to investigate the stereochemical course of the extra-annular Claisen rearrangement. The stereochemical fidelity of the synthetic strategy and comparison of the optical properties support the hypothesis that the heliespirones are scalemic natural products.
Total Synthesis of (-)-Heliespirone A and (+)-Heliespirone C
作者:Philip Norcott、Christopher S. P. McErlean
DOI:10.1002/ejoc.201402420
日期:2014.8
Total syntheses of the spiro-epimeric natural products (–)-heliespirone A and (+)-heliespironeC are described. The successful strategy involved an aromatic Claisen rearrangement, a diastereoselective Sharpless asymmetric dihydroxylation (AD) reaction, and an intramolecular oxa-Michael addition.
描述了螺-差向异构天然产物 (-)-heliespirone A 和 (+)-heliespirone C 的总合成。成功的策略涉及芳香 Claisen 重排、非对映选择性 Sharpless 不对称二羟基化 (AD) 反应和分子内 oxa-Michael 加成。