Synthesis of three-dimensional fused and spirocyclic oxygen-containing cyclobutanone derivatives
作者:Sergey V. Ryabukhin、Kateryna I. Fominova、Dmitriy A. Sibgatulin、Oleksandr O. Grygorenko
DOI:10.1016/j.tetlet.2014.11.050
日期:2014.12
approach to fused and spirocyclic oxygen-containing cyclobutanone derivatives based on ketene [2+2] cycloaddition with vinyl ethers is described. Using alicyclic chloroanhydrides as ketene sources as well as cyclic vinyl ethers in the reaction resulted in the formation of three-dimensional conformationally restricted building blocks of interest to medicinal chemistry and organic synthesis. In particular