construction is a highly efficient intramolecular [3+2] cycloaddition between a nitrile oxide and an olefin. The reductive ring cleavage of the resulting dihydroisoxazole provides the desired bridgehead-substituted bicyclo[3.2.1]octane-2,4-diones.
我们报告了桥头取代双环 [3.2.1]
辛烷-2,4-二酮的有效合成。它们构建的关键步骤是腈氧化物和烯烃之间的高效分子内 [3+2] 环加成。所得二氢
异恶唑的还原性环裂解提供了所需的桥头取代
双环[3.2.1]辛烷-2,4-二酮。