Abstract
In this review update we provide a critical analysis of recent results concerning the use of ionic liquids (ILs) as viable, effective, and environmental friendly media for the Heck reactions (HR). The examples selected illustrate the multifaceted action of ILs as nanoparticles stabilizers, promoters of ligand-assisted HR, promoters of phosphine-free HR, solvent for the Heck-Matsuda reactions employing arenediazonium salts, in the dehydrative Heck olefination, and as charged-tagged pre-catalysts. These selected reports aim at demonstrating the scope and the impact of Ils on new discoveries, as well as to illustrate the new opportunities and challenges they offer for those interested in catalysis and organic synthesis in general.
Keywords: Ionic liquids, Heck reaction, Palladium-nanoparticles , N-heterocyclic carbenes, Diaminocarbene Precursor, Classical Heck Reaction, Dehydrative Heck Olefination, Heck-Matsuda Reaction, Hexafluorophosphate diazonium salt, Butanone
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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