Since C–C bond cleavage was reported, which has become more and more attractive topic and given great opportunity to utilization of inert starting materials to construct new chemical bonds.1As the substrate of a powerful building blocks, benzyl cyanide reagents represent a kind of stable and easily obtained structures. While C–CN bond is relatively stronger and stable because of the higher bond dissociation energy.2Thus, thecleavage of C–CN bonds is a challengeable topic.