Jin‐Heng Li, Ji-Lan Li, Yexiang Xie
Apr 1, 2007
Citations
0
Influential Citations
32
Citations
Journal
Synthesis
Abstract
Tetrabutylammonium bromide (TBAB) was found to improve the ligand-free copper-catalyzed cross-couplings of aryl halides with arylboronic acids. In the presence of 10 mol% of CuI and 20 mol% of TBAB, a variety of aryl halides underwent the coupling with arylboronic acids smoothly to afford the corresponding products in moderate to good yields.