Palladium-catalyzed site-selective arylation of symmetric dichlorobenzaldehyde to non-symmetric diaryl benzaldehyde via Suzuki coupling
摘要:
Arylation of 2,6-dichlorobenzaldehyde by aryl boronic acids via site-selective Suzuki coupling catalyzed by PdCl2 supported on 4 A molecular sieves produces 2-aryl-6-chlorobenzaldehyde which on subsequent coupling with a different aryl boronic acid in the presence of Pd(OAc)(2)-NHC ligand leads to non-symmetric diaryl benzaldehyde in good overall yield. (C) 2012 Elsevier Ltd. All rights reserved.
Palladium-catalyzed site-selective arylation of symmetric dichlorobenzaldehyde to non-symmetric diaryl benzaldehyde via Suzuki coupling
作者:Raju Dey、Brindaban C. Ranu
DOI:10.1016/j.tetlet.2012.01.014
日期:2012.3
Arylation of 2,6-dichlorobenzaldehyde by aryl boronic acids via site-selective Suzuki coupling catalyzed by PdCl2 supported on 4 A molecular sieves produces 2-aryl-6-chlorobenzaldehyde which on subsequent coupling with a different aryl boronic acid in the presence of Pd(OAc)(2)-NHC ligand leads to non-symmetric diaryl benzaldehyde in good overall yield. (C) 2012 Elsevier Ltd. All rights reserved.