Highly effective copper-catalyzed decarboxylative coupling of aryl halides with alkynyl carboxylic acids
作者:Xiaoming Qu、Tingyi Li、Peng Sun、Yan Zhu、Hailong Yang、Jincheng Mao
DOI:10.1039/c1ob05969f
日期:——
We have developed a highly effective copper-catalyzeddecarboxylativecoupling of alkynylcarboxylic acids with various aryl and alkyl halides at 2 mol% loading of copper. This method is simple, economical and practical for the synthesis of disubstituted alkyne compounds.
Highly Active Palladium Catalyst for the Sonogashira Coupling Reaction of Unreactive Aryl Chlorides
作者:Dong-Hwan Lee、Young-Jun Kwon、Myung-Jong Jin
DOI:10.1002/adsc.201100747
日期:2011.11
communication reports on the β-diketiminatophosphane palladium-catalyzed copper-free Sonogashira coupling of arylchlorides with alkynes. A catalyst loading of 0.5 mol% is sufficient to achieve high performance under relatively mild reaction conditions. Furthermore, dialkynylbenzenes are efficiently prepared by one-pot double Sonogashira couplings of aryl dichlorides.