Cyclic and Macrocyclic Molecules Containing Silicon or Tin – Synthesis of Highly Rigid, Potentially Lewis‐Acidic Cryptands

Herein we report the syntheses of highly rigid silicon- and tin-containing cyclic bicyclic compounds with unsaturated organic backbones. The proceed via di-lithiated diethynylbenzene derivatives. protocols for known precursor were significantly improved in a two-step one-pot reaction yields up to 45% by alternating addition lithiation reagent starting material. A total ten synthesized molecular structure solid state was elucidated six novel compounds. Host-guest-experiments selected molecules conducted investigate on potential complexation small anions. All characterized multinuclear NMR spectroscopy elemental analyses or mass spectrometry most parts SC-XRD analyses.