Polyaminoborane main chain scission using N-heterocyclic carbenes; formation of donor-stabilised monomeric aminoboranes

Abstract

The reaction of N-heterocyclic carbenes with polyaminoboranes [MeNH–BH₂] _n or [NH₂–BH₂] _n at 20 °C led to depolymerisation and the formation of labile, monomeric aminoborane–NHC adducts, RNH–BH₂–NHC (R = Me or H); a similar NHC adduct of Ph₂NBCl₂ was characterized by single crystal X-ray diffraction.