Low‐Coordinate Barium Boryloxides: Synthesis and Dehydrocoupling Catalysis for the Production of Borasiloxanes |
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| Authors: | Erwann Le Coz Dr. Vincent Dorcet Dr. Thierry Roisnel Dr. Sven Tobisch Prof. Dr. Jean‐François Carpentier Dr. Yann Sarazin |
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| Affiliation: | 1. Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, Rennes, France;2. School of Chemistry, University of St Andrews, North Haugh, St Andrews, UK |
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| Abstract: | The first soluble barium boryloxides [Ba]– OB{CH(SiMe3)2} are presented. These mono‐ or dinuclear complexes feature low coordination numbers, as low as two for [Ba(OB{CH(SiMe3)2}2)2], which is further stabilized by intra‐ and intermolecular Ba???H3C agostic interactions. Barium boryloxides and the parent [Ba{N(SiMe3)2}2?(thf)2] catalyze the dehydrocoupling of borinic acids with hydrosilanes, providing borasiloxanes under mild conditions. |
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| Keywords: | barium borasiloxanes boryloxides dehydrocoupling catalysis low-coordinate complexes |
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