Hydrosilylation of BB triple bonds: catalyst- and reductant-free construction of B–Si bonds and B2Si heterocycles†
Abstract
Hydrosilanes undergo mild, uncatalyzed single and double 1,2-addition across the B–B triple bonds of diborynes, leading to an unsymmetrical silyldiborene and compounds with novel non-cluster three-membered B2Si rings. The reactions are a new addition to the very few catalyst- and alkali-metal-free methods available for the construction of B–Si bonds.