Heck reactions in a non-aqueous ionic liquid using silica supported palladium complex catalysts

The Heck reaction of iodobenzene and 4-methyl-iodobenzene with olefins using silica-supported palladium complex catalysts was conducted in 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6), exhibiting higher activities than in DMF in addition to easy product isolation and catalyst recycling. (C) 2002 Elsevier Science Ltd. All rights reserved.