Palladium-Catalyzed Coupling of<i>N</i>-Aminoazoles with 3-Halo-Substituted Quinolin-2(1<i>H</i>)-ones, Coumarins, Quinoxalin-2(1<i>H</i>)-ones, and Chromenes
作者:Thi Thanh Huyen Luong、Etienne Brachet、Jean-Daniel Brion、Samir Messaoudi、Mouâd Alami
DOI:10.1002/ejoc.201403501
日期:2015.3
An efficient and general palladium-catalyzed coupling of 3-bromoquinolin-2(1H)-ones, 3-bromocoumarins, 3-chloroquinoxalin-2(1H)-ones, and 3-iodo-2H-chromenes with a variety of 1-aminoazoles is described. The reaction proceeds cleanly in the presence of the Pd(OAc)2/4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) catalytic system to provide the coupling products in good to excellent yields
3-溴喹啉-2(1H)-酮、3-溴香豆素、3-氯喹喔啉-2(1H)-酮和3-碘-2H-色烯与多种1-氨基唑的高效通用钯催化偶联被描述。该反应在 Pd(OAc)2/4,5-双(二苯基膦)-9,9-二甲基呫吨 (Xantphos) 催化体系的存在下顺利进行,以提供良好至极好的产率的偶联产物。