Patent ID: 6384257
Filing Date: 2002-05-07
Classification: C07F

Abstract:
A process for preparing alkylhydrohalosilanes (ahhs) of formula (I)R4âˆ’mâˆ’n SiHmXnâ€ƒâ€ƒ(I) in whichR represents independently a C1-C6 alkyl, X represents independently a halogen, m, n are 1 or 2 and m+n&lE;3 comprising hydrogenating catalytically alkylhalosilanes (ahs) of formula (II):R(4âˆ’f) Xi Xfâ€ƒâ€ƒ(II) where f is 1, 2 or 3 in accordance with the reaction:R(4âˆ’p) Si Xp+H2â†’R4âˆ’mâˆ’n SIHmXn+Hmâ€²Xnâ€²where nâ€²+n=p and mâ€² is 0 or 1 in the presence of a metallic catalyst,wherein the metallic catalyst comprises a bimetallic ruthenium/tin catalytic agent.