Application of the intramolecular wadsworth-emmons reaction to bicyclo[3.3.0]oct - Δ1,2 - en - 3 - ones. Synthesis and x-ray structure of a novel
作者:Michael J. Begley、Kelvin Cooper、Gerald Pattenden
DOI:10.1016/0040-4020(81)80017-8
日期:1981.1
The cyclisation of β,ϵ-diketophosplionates is shown to provide an expeditious route to bicyclo[3.3.0]oct - Δ1,2 - en - 3 - ones, which lack substitoents at C-2 and C-5. Application of the method to the parent member 12 results in the formation of a novel dimer 16 whose structure has been determined by X-ray crystallography. The dimer is thought to derive from 12 by a double Michael addition sequence
β,ε-diketophosplionates的环化被示出以提供迅速路线双环[3.3.0]辛- Δ 1,2 -烯- 3 -酮,其在C-2和C-5缺乏substitoents。将该方法应用于母体构件12导致形成新颖的二聚体16,其结构已经通过X射线晶体学确定。二聚体被认为是通过12个双迈克尔加成序列从12衍生而来的,该加成序列涉及烯丙基阴离子13和烯醇盐15。