Preparation of a Promising Cyclobutanone Chiral Building Block: Its Stereochemistry and Utilization
作者:Takahiko Taniguchi、Yasuo Goto、Kunio Ogasawara
DOI:10.1055/s-1997-3270
日期:1997.6
A cyclobutanone possessing a bicyclo[2.2.1]heptene framework endo-tricyclo[4.2.1.02,5]non-7-en-3-one} has been prepared in both enantiomeric forms employing lipase-mediated kinetic resolution as the key step. To determine the absolute configuration, as well as to demonstrate the synthetic potential, both enantiomers of the cyclobutanone obtained have been transformed enantioconvergently into the key intermediate of the sequiterpene (+)-β-santalene and the iridoid monoterpene (-)-boschnialactone.
以脂肪酶介导的动力学解析为关键步骤,制备出了具有双环[2.2.1]庚烯框架的环丁酮内-三环[4.2.1.02,5]壬-7-烯-3-酮}的两种对映体形式。为了确定其绝对构型并证明其合成潜力,已将所获得的环丁酮的两种对映体对映转化为序萜烯 (+)-δ²-santalene 和鸢尾单萜 (-)-boschnialactone 的关键中间体。