Palladium-Catalyzed Coupling of 3-Halo-Substituted Coumarins, Chromenes, and Quinolones with Various Nitrogen-Containing Nucleophiles
作者:Mohamed Ali Soussi、Davide Audisio、Samir Messaoudi、Olivier Provot、Jean-Daniel Brion、Mouâd Alami
DOI:10.1002/ejoc.201100480
日期:2011.9
An efficient and general palladium-catalyzedcoupling reaction between 3-bromocoumarins, 3-bromoquinolin-2(1H)-ones, and 3-iodo-2H-chromenes with a variety of nitrogen-containingnucleophiles (azole, amide, lactam, sulfonamide, aniline, amine, and urea) is described. The reaction proceeded rapidly and cleanly in dioxane providing the coupling products in good to excellent yields. The chemoselectivity