Palladium-catalyzed selective decarboxylative coupling reaction versus direct C―H arylation for arylation of heteroaromatics
作者:Haiyan Fu、Hua Chen、Henri Doucet
DOI:10.1002/aoc.3037
日期:2013.10
Conditions for selective palladium‐catalyzed decarboxylative 2‐arylation of 3‐substituted thiophene and furan derivatives bearing an ester at C2 position have been established. By using 2 mol% phosphine‐free Pd(OAc)2 as the catalyst and a mixture of KOH and K2CO3 as the bases, in dimethylacetamide, moderate to good yields of the desired 2‐arylated products were obtained. A range of functional groups