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Metal-free catalytic hydrogenolysis of silyl triflates and halides into hydrosilanes

Gabriel Durin 1 Albane Fontaine 1 Jean-Claude Berthet 1 Emmanuel Nicolas 1 Pierre Thuéry 1 Thibault Cantat 1, * 
* Corresponding author
1 LCMCE - Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF)
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : The metal-free catalytic hydrogenolysis of silyl triflates and halides (I, Br) to hydrosilanes is unlocked by using arylborane Lewis acids as catalysts. In the presence of a nitrogen base, the catalyst acts as a Frustrated Lewis Pair (FLP) able to split H2 and generate a boron hydride intermediate prone to reduce (pseudo)halosilanes. This metal-free organocatalytic system is competitive with metal-based catalysts and enables the formation of a variety of hydrosilanes at r.t. in high yields (>85 %) under a low pressure of H$_2$ (≤ 10 bar).
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https://hal-cea.archives-ouvertes.fr/cea-03540549
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Submitted on : Monday, January 24, 2022 - 4:21:24 PM
Last modification on : Wednesday, January 26, 2022 - 3:33:47 AM
Long-term archiving on: : Monday, April 25, 2022 - 6:26:01 PM

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Gabriel Durin, Albane Fontaine, Jean-Claude Berthet, Emmanuel Nicolas, Pierre Thuéry, et al.. Metal-free catalytic hydrogenolysis of silyl triflates and halides into hydrosilanes. 2022. ⟨cea-03540549⟩

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