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US 7,442,821 B2Granted
Process for preparing unsaturated imidoalkoxysilanes
AssigneeMomentive Performance Materials Inc.
InventorBen Patel
Life of this patent
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Abstract
A process is provided for preparing unsaturated imidoalkoxysilane which comprises imidating substantially water-free Diels-Alder protected unsaturated N-substituted cyclic imide with aminosilane to provide Diels-Alder protected unsaturated imidoalkoxysilane without the use of chemical desiccants. The Diels-Alder protected unsaturated imidoalkoxysilane produced is then deprotected to provide unsaturated imidoalkoxysilane and the Diels-Alder protecting diene is regenerated to the process. A Diels-Alder intermediate is also provided.
Claims27
A process for preparing unsaturated cyclic imidoalkoxysilane, which comprises:
- i) transimidating substantially water-free Diels-Alder protected unsaturated aromatic N-substituted cyclic imide with at least one aminoalkoxysilane to provide at least one Diels-Alder protected unsaturated cyclic imidoalkoxysilane.
Dependencies are inferred from the claim text.