C-O reductive elimination from high valent Pt and Pd centers

Abstract

Reactions of high valent platinum and palladium complexes leading to the formation of C(sp2)-O and C(sp3)-O bonds are involved in various catalytic applications such as oxidative functionalization of hydrocarbons, which are especially rich in the case of palladium chemistry. This Chapter emphasizes on the mechanisms of C-O reductive elimination from octahedral d6 Pt(IV) and, in part, from Pd(IV) complexes. The nature of the leaving groups, the metal center, the presence of soft/hard spectator ligands, the number of hydrocarbyl ligands at the metal, and some other factors affecting the reactivity of such complexes are considered. As shown here, there are still uncharted territories in the area of high valent organoplatinum and organopalladium chemistry: C(sp2)-O reductive elimination from PtIV, reactivity and reaction mechanisms of PtIII and PdIII organometallic derivatives, synthesis and reactivity of monoalkyl and monoaryl palladium(IV) complexes stabilized by O-donor ligands, and others. The rapid progress observed in this field of chemistry suggests that some of these areas will soon be explored. © 2010 Springer-Verlag Berlin Heidelberg.