activation can be used under mild conditions for the remote functionalization of C-4 methyl groups of molecules with different terpenoid-like skeletons containing six- or seven-membered A rings. This procedure has allowed us to complete a novel strategy for the synthesis of γ-dioxygenated terpenoids in three stages: (i) selective epoxidation of commercial polyenes, (ii) titanium(III)-catalyzed cyclization
我们目前的结果表明,Pd介导的C–H键活化可在温和的条件下用于具有不同
萜类骨架(含六元或七元A环)的分子的C-4甲基的远程官能化。该程序使我们能够完成三个阶段的γ-双加氧
萜类化合物的合成新策略:(i)商业多烯的选择性环氧化;(ii)
钛(III)催化的环氧
戊二烯环化;以及(iii)Pd-介导的赤道甲基的远程功能化。事实证明,该策略对于合成天然丹丹罗仕通(1)很有用。