作者:Marek Majewski、Gary Bantle
DOI:10.1016/s0040-4039(00)70642-3
日期:——
The spiro[3,4-dihydro-2H-1-benzopyran-2,2′-bicyclo[3.1.1]heptane] framework of natural products Robustadials was constructed in a homochiral form. The synthesis started from 1-(−)-β-pinene, which was coupled to a substituted benzaldehyde using a Prins reaction, and incorporated a diastereoselective, Michael-type, intramolecular addition.
天然产物Robustadials的螺[3,4-二氢-2H-1-苯并吡喃-2,2'-双环[3.1.1]庚烷]骨架以纯手性形式构建。合成从1 -(-)-β-pine烯开始,其使用普林斯反应与取代的苯甲醛偶联,并引入非对映选择性的迈克尔型分子内加成。