Organosilicon compounds are commonly employed as reagents and intermediates in organic synthesis, and as monomers for production of oligomers, polymers and composites that are used in many different applications. The two most important reactions for formation of silicon-carbon bonds, the direct process and hydrosilation, are metal-catalyzed processes that are employed on a massive scale. However, many challenges remain for improvement of these technologies, to make them more efficient and cost effective. A general approach to addressing these issues involves discovery of new fundamental reaction steps for activations of substrates. Along these lines, it appears that new types of hydrosilation catalysts may be based on unsaturated metal-silicon species (metal silylene complexes). A number of additional species that feature intramolecular Si-H interactions may also play a role in new transformations of interest. Within these contexts, new synthetic, mechanistic, reactivity and catalytic studies involving metal-silicon complexes will be described.

New strategies for metal-catalyzed hydrosilylations: Structures, reaction steps, and catalytic cycles

243rd National Meeting (2012)

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