Copper-Assisted Palladium(II)-Catalyzed Direct Arylation of Cyclic Enaminones with Arylboronic Acids
作者:Yong Wook Kim、Micah J. Niphakis、Gunda I. Georg
DOI:10.1021/jo301531k
日期:2012.11.2
Described herein is a palladium(II)-catalyzed direct arylation of cyclic enaminones with arylboronicacids. The versatility of this method is that both electron-rich and electron-poor boronic acids can be coupled in high yields. A mixture of two Cu(II) additives was crucial for efficient cross-coupling. The role of each Cu(II) reagent appears to be distinct and complementary serving to assist catalyst