Process for the production and purification of...

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

Reexamination Certificate

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Reexamination Certificate

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06963006

ABSTRACT:
A process for synthesizing an aminosilane compound such as bis(tertiarybutylamino)silane is provided. In one aspect of the present invention, there is provided a process for making bis(tertiarybutylamino)silane comprising reacting a stoichiometric excess of tert-butylamine with dichlorosilane under anhydrous conditions sufficient such that a liquid comprising the bis(tertiarybutylamino)silane product is produced.

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Radhamani et al., High Yield Room Temperature Synthesis and Spectral Studies of Tri(Amino)Silanes: (R2N)3SiH, Phosphorus, Sulfur and Silicon, vol. 66, 1992, pp. 297-300.
Radhamani et al., A Convenient High Yield Room Temperature Synthesis of Mixed Tri(Amino)Silanes by Transamination of Tris(Dicyclohexylamino)Silane and Their Characterization, Phosphorus, Sulfur and Silicon, vol. 79, pp. 65-68.
Radhamani et al., Phosphorus, Sulfur and Silicon, 1993, vol. 79, pp. 65-68.
Penn et al., Industrial and Engineering Chemsitry Process Design and Development (1984), 23(2), 217-220.
D. G. Anderson, et al., “Isopropyldisilylamine and Disilyl-t-butylamine: Preparation, Spectroscopic Properties, and Molecular Structure in the Gas Phase, Determined by Electron Diffraction,” J. Chem. Soc. Dalton Trans., 1989, pp. 779-783.
D. G. Anderson, et al., “Die Strukur von gasförmigern und festern Chlorsilyl-N-N-dimethylamin,” Angew. Chem., 98, 1986, No. 1, pp. 97-99, (Abstract).
K. N. Radhamani, et al., “A Convenient High Yield Room Temperature Synthesis of Mixed Tri(Amino)Silanes by Transamination of Tris(Dicyclohexylamino)Silane and Their Characterization,” Phosphorus, Sulfur, and Silicon, vol. 79, pp. 65-68 (1993).
K. N. Radhamani, et al., High Yield Room Temperature Synthesis and Spectral Studies of Tri(Amino)Silanes: (R2N03SiH, Phosphorus, Sulfur, and Silicon, vol. 66, pp. 297-300 (1992).
K. N. Radhamani, et al., “High Yield Room Temperature Synthesis and Spectral Studies of Tri(Amino)Silanes: (R2N)3SiH,” Phosphorus, Sulfur, and Silicon, vol. 66, pp. 297-300 (1992).

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