Bis(2,4,6‐tri‐<i>tert</i>‐butylphenyl)stannanediyl: A DiaryIstannylene without Donor Stabilization

Abstract

The first diarylstannylene monomeric in the solid state and not stabilized by donor ligands is 1. The dark red compound forms in good yields from Sn[N(SiMe3)2]2 and RLi (R = 2,4,6-tBu3C6H2). In solution 1 apparently isomerizes to give the sterically less encumbered stannylene RR′Sn: (R′  CH2C(Me)2 −3,5-tBu2C6H3).