Asymmetric synthesis of highly functionalized chiral cis-decalins was realized by merging Birch reduction and a tandem olefin migration/asymmetric IEDDA reaction. Up to six contiguous and two quaternary stereocenters could be formed in one step by efficient kinetic resolution. The synthetic value of the approach is illustrated by the concise total synthesis of (+)-occidentalol and the synthesis of
通过合并 Birch 还原和
串联烯烃迁移/不对称 IE
DDA 反应,实现了高功能化手性顺式十
氢化
萘的不对称合成。通过有效的动力学拆分,一步可以形成多达六个连续的和两个四元立构中心。(+)-occidentalol的简明全合成和七种三萜关键
中间体的合成说明了该方法的合成价值。