Unlocking the Catalytic Hydrogenolysis of Chlorosilanes into Hydrosilanes with Superbases

Gabriel Durin (1) , Jean-Claude Berthet (1) , Emmanuel Nicolas (1) , Thibault Cantat (1)

1 LCMCE - Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF)

The efficient synthesis of hydrosilanes by catalytic ydrogenolysis of chlorosilanes is described, using an Iridum (III) pincer catalyst. A careful selection of a nitrogen base (incl. sterically hindered guanidines and phosphazenes) can unlock the preparation of Me3SiH, Et3SiH and Me2SiHCl in high yield (up to 98%), directly from their corresponding chlorosilanes.

Mots clés: Hydrosilane synthesis; hydrogenolysis; homogenous catalysis; superbases; iridium pincer complex

Domaines: Catalyse; Chimie organique

Gabriel Durin, Jean-Claude Berthet, Emmanuel Nicolas, Thibault Cantat. Unlocking the Catalytic Hydrogenolysis of Chlorosilanes into Hydrosilanes with Superbases. 2021. ⟨cea-03547774v1⟩