writer：Shenghai Li, Yingjie Lin, Haibo Xie, Suobo Zhang*, and Jianing Xu
keywords：Ionic liquids, Heck reaction, guanidine
source：期刊
specific source：Org. Lett.
Issue time：2006年
Br?nsted acid?base ionic liquids (GILs) based on guanidine and acetic acid are efficient reaction media for palladium-catalyzed Heck reactions. They offer the advantages of high activity and reusability. GIL2 plays multiple roles in the reaction: it could act as solvent, as a strong base to facilitate a-hydride elimination, and as a ligand to stabilize activated Pd species.