Bicyclic and Tricyclic Ladder Compounds Consisting of Two Oligosiloxane Chains Bridged by Si–Si Rungs

The bicyclic and tricyclic ladder compounds consisting of two oligosiloxane chains bridged by Si–Si rungs were synthesized by the condensation of 1,2-dihydroxy-1,1,2,2-tetraisopropyldisilane and 1,1,2,2-tetrachloro-1,2-diisopropyldisilane with aniline. The structures of these compounds were confirmed by X-ray crystallography.