Ruthenium complex-catalyzed hydrosilylation of allyl chloride with trimethoxysilane

The hydrosilylation of allyl chloride with trimethoxysilane has been examined in the presence of several homogeneous complex catalysts. Iridium and ruthenium complexes exhibit higher selectivities in the reaction to give 3-chloropropyltrimethoxysilane. Other complexes usually give propylene and/or tetramethoxysilane as side products in large quantities. The Ru 3 (CO) 12 ,-catalyzed reactions effected at lower temperatures or by using a large excess of trimethoxysilane relative to allyl chloride give the chloropropylsilane in good yields.