Ruthenium-catalyzed C–H/O–H and C–H/N–H bond functionalizations: oxidative annulations of cyclopropyl-substituted alkynes
作者:Monica Deponti、Sergei I. Kozhushkov、Dmitry S. Yufit、Lutz Ackermann
DOI:10.1039/c2ob26250a
日期:——
The chemical behavior of cyclopropyl-substituted alkynes has been probed using the reaction conditions of ruthenium-catalyzed oxidative CâH/OâH and CâH/NâH bond functionalizations. The oxidative annulations proceeded with complete conservation of all cyclopropane fragments and allowed for the one-step preparation of synthetically useful cyclopropyl-substituted isocoumarins and isoquinolones with high regioselectivities and chemical yields. The connectivities of the key heterocyclic products were unambiguously established by X-ray diffraction analysis.
使用钌催化的氧化 C–H/O–H 和 C–H/N–H 键功能化反应条件,对环丙基取代的炔烃的化学行为进行了探讨。氧化环化反应在完全保留所有环丙烷片段的情况下进行,并允许一步法合成具有高区域选择性和化学产率的合成有用的环丙基取代异香豆酸和异喹啉。关键杂环产物的连接方式通过 X 射线衍射分析得到了明确的确定。