화학공학소재연구정보센터
Journal of Molecular Catalysis A-Chemical, Vol.273, No.1-2, 240-243, 2007
The Pd(OAc)(2)-catalyzed homocoupling of arylboronic acids in water and ionic liquid
The homocoupling reaction of the arylboronic acids proceeded smoothly in a mixture of water and ionic liquids in the presence of ethyl bromoacetate ester using Pd(OAc)(2) as catalyst in high yield at 60 degrees C for 3 h. The separation of desired products was easily performed by extraction with diethyl ether and Pd(OAc)(2)-[bmim][PF6] (1-butyl-3-methylirnidazolium hexafluorophosphate) can be reused eight times accompanied with only a slight decrease in activity. (C) 2007 Published by Elsevier B.V.