Scope and selectivity in palladium-catalyzed directed C-H bond halogenation reactions

Palladium-catalyzed ligand directed C-H activation/halogenation reactions have been extensively explored. Both the nature of the directing group and the substitution pattern on the arene ring of the substrate lead to different reactivity profiles, and often different and complementary products, in the presence and absence of the catalyst. (c) 2006 Elsevier Ltd. All rights reserved.