Synthesis, structure and reactions of triarylgermyl anion with α,δ-ambiphilic character

Article abstract of DOI:10.1039/b923606f

Benzosilagermacyclobutene bearing two Ar groups on the germanium atom [Ar = o-(fluorodimethylsilyl)phenyl] undergoes cleavage of the Ge-Si bond with KF in the presence of a cryptand to form Ar₃Ge^-[K ⁺(cryptand)] with a,d-ambiphilic character consisting of the germyl anion center and the fluorosilyl moieties. In the presence of LiBPh ₄·3dme or BF₃·Et₂O, the germylpotassium is converted back into the benzosilagermacyclobutene. The Royal Society of Chemistry 2010.