Abstract

The synthesis of a bis(α-spirocyclopropyl)silylene is reported and its reactivity revealed. Liberation of the silylene was accomplished by UV-light-mediated photolysis of a trisilane precursor. Insertion and addition reactions prove the existence and versatility of this new family of bis(α-spirocyclopropyl)-substituted silylenes. Substitution on the flanking cyclopropyls for improved steric shielding of the reactive center remains challenging.

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