Synthesis and Investigation of a Soluble Distannene with no Trans-Bent Angle or Twisting in the Solid-State.

By treating KSi i Pr 3 with Sn[N(SiMe 3 ) 2 ] 2 the distannene Sn 2 (TIPS) 4 (TIPS=Si i Pr 3 ) is formed in a metathesis reaction. The crystal structure analysis of Sn 2 (TIPS) 4 reveals a planar arrangement of the substituents in the solid-state and hence the second planar alkene like distannene of its kind. Due to the TIPS substituents, Sn 2 (TIPS) 4 is well soluble in all commonly used organic solvents, opening the door for various analytics and reactivity studies. Due to its stability in solution, various reactions can be performed such as cycloaddition reactions with 2,3-dimethyl-1,3-butadiene (DMBD) and TMS-azide.