A General Synthesis of Alkenyl‐Substituted Benzofurans, Indoles, and Isoquinolones by Cascade Palladium‐Catalyzed Heterocyclization/Oxidative Heck Coupling
作者:Rosana Álvarez、Claudio Martínez、Youssef Madich、J. Gabriel Denis、José M. Aurrecoechea、Ángel R. de Lera
DOI:10.1002/chem.201001535
日期:2010.11.8
consecutive Sonogashira and cascade Pd‐catalyzedheterocyclization/oxidativeHeckcouplings from readily available ortho‐iodosubstituted phenol, aniline, and benzamide substrates, alkynes, and functionalized olefins. The cyclization of O‐ and N‐heteronucleophiles follows regioselective 5‐endo‐dig‐ or 6‐endo‐dig‐cyclization modes, whereas the subsequent Heck‐type coupling with both mono‐ and disubstituted