Synthesis of Benzo[b]furans by Palladium-NHC Catalyzed Ring Closure of o-Bromobenzyl Ketones
作者:András Kotschy、János Faragó
DOI:10.1055/s-0028-1083261
日期:2009.1
The palladium-catalyzed ringclosure of aryl o-bromobenzyl ketones, easily accessible from aromatic aldehydes and 2-bromobenzyl bromide, provides a straightforward route to 2-arylbenzofurans. A study of the ringclosure revealed that a heterocyclic carbene based catalyst provides the best results. ringclosure - palladium - catalysis - benzofurans