Transition Metal Complexes of Boron

Abstract

Rapid advances have been made over the past few years in the chemistry of transition metal complexes with σ-bonded boryl and borylene ligands. The use of suitable substituents on boron has made possible both the synthesis and complete characterization of numerous compounds of this type, and the analysis of spectroscopic data provides the first insight into the nature of the metal–boron bonds. Boryl complexes offer new possibilities for the functionalization of organic compounds by C−H activation and transition metal catalyzed hydroboration.