A reductive elimination after N-H and O-H bond activation has been performed by a bis(boryl)stannylene for NH 3 and H 2 O, respectively. After N-H bond activation of NH3, the boryl ligand of the stannylene interacts with the H-atom or NH2group, whereby a 1:1 mixture of boryl(H) and boryl(NH2) was formed along with reduced tin species.