作者:Arribas, Andrés、Calvelo, Martín、Rey, Alejandro、Mascareñas, José L.、López, Fernando
DOI:10.1002/anie.202408258
日期:——
An iridium-catalyzed cycloisomerization of N-allenyl pyrroles and indoles is reported. The method, which is initiated by a C−H activation step, delivers a diversity of synthetically relevant azaheterocyclic products, depending on the precise ancillary ligand used and the substitution pattern of the allene. Particularly attractive are the hydrocarbonation cascades of tetrasubstituted allenyl precursors
报道了铱催化的N-丙二烯基吡咯和吲哚的环异构化。该方法由 CH 活化步骤启动,根据所使用的精确辅助配体和丙二烯的取代模式,提供多种合成相关的氮杂环产物。特别有吸引力的是四取代丙二烯基前体的烃化级联,其涉及伴随的氢化或环丙烷化步骤,并且以优异的立体和对映选择性进行。