Unique Reactivity of Dihydrosilanes under Catalysis by Supported Gold Nanoparticles: cis‐1,2‐Dehydrogenative Disilylation of Alkynes

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Abstract
In contrast to monohydrosilanes (R3SiH), which in the presence of supported gold nanoparticles primarily undergo typical β‐(E)‐hydrosilylation reactions with alkynes, dihydrosilanes (R2SiH2) under catalysis of Au/TiO2 lead to cis‐1,2‐dehydrogenative disilylation reactions at room temperature with high selectivity. The disilyl adducts can be further functionalized through a one‐pot procedure, catalyzed by the same catalyst, to form substituted 2,5‐dihydro‐1,2,5‐oxadisiloles or 1,4‐disila‐2,5‐cyclohexadienes.
Funding Information
  • Greek General Secretariat for Research and Technology (A scholarship to MK)

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