Intramolecular Palladium-Catalyzed Direct Arylation<i>vs.</i>Heck Reactions: Synthesis of Pyrroloisoquinolines and Isoindoles
作者:Sergio Lage、Unai Martínez-Estíbalez、Nuria Sotomayor、Esther Lete
DOI:10.1002/adsc.200900368
日期:2009.10
competition between CH activation and Heck reactions has been studied on 2-alkenyl-substituted o-iodobenzylpyrroles. The reaction can be switched from the alkene to the pyrrole nucleus by choosing the adequate catalytic system, regardless of the nature of the substituent on the alkene, obtaining excellent yields of pyrrolo[1,2-b]isoquinolines or pyrrolo[2,1-a]isoindoles.
已经对2-烯基取代的邻碘碘苄基吡咯研究了CH活化和Heck反应之间的竞争。通过选择适当的催化体系,无论烯烃上取代基的性质如何,均可将反应从烯烃切换为吡咯核,从而获得优异的吡咯并[1,2- b ]异喹啉或吡咯并[2,1-]收率。a ]异吲哚。