Arene Complexes as Catalysts

Abstract

An overview of organic reactions catalyzed by π-arene complexes of transition metals is presented. The chapter summarizes only those transformations that take place at the metal atom, which is coordinated to an arene ligand. Two different mechanisms of formation for catalytically active species have been distinguished: (1) via dissociation of arene-metal bonds and (2) with the η⁶-arene ligand remaining on the metal. The topic is reviewed with emphasis on the types of organic reactions promoted by arene-metal complexes. The description of each reaction is provided with representative figures or schemes. Catalyst structures and key reaction intermediates are given to explain the reaction outcome. The use of π-arene complexes in the synthesis of complex molecules and industrial applications of arene-metal catalysts are discussed.