Ionic liquids are not innocent in Pd catalysis. C-H arylation of thiazolium and imidazolium ionic liquids with aryl halides

Abstract

The ionic liquids bearing an aromatic vinylic C-H moiety are not innocent during Pd-catalyzed crosscoupling reactions of aryl halides, since palladium-catalyzed direct C-H arylation of thiazolium and imidazolium ionic liquids competes.