4.8 Article

The Highly Lewis Acidic Dicationic Phosphonium Salt: [(SIMes) PFPh2][B(C6F5)4]2

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 25, Pages 6538-6541

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201403693

Keywords

carbene ligands; hydrodefluorination; hydrosilylation; Lewis acids; phosphonium salts

Funding

  1. NSERC of Canada
  2. Canada Research Chair
  3. Alexander von Humboldt Foundation

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The dicationic imidazolium-phosphonium salt [(SIMes) PFPh2][B(C6F5)(4)](2) has been prepared and shown to exhibit remarkable Lewis acidity in stoichiometric reactions and acting as an effective Lewis acid catalyst for the hydrodefluorination of fluoroalkanes and the hydrosilylation of olefins.

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