Tetra(amino)silanes can be prepared via different routes from SiCl4. Primary or secondary amines frequently yield chlorine-contaminated products. Trimethylsilylated or metalated amines are alternative starting materials. The aminosilanes tend to exchange reactions as exemplified by the 3,5-dimethylpyrazole (pz) derivatives Si(pz)xCl4-x[1]. Alkylaminosilanes are useful precursors for the synthesis of transparent xerogels [2]. Besides, they form carbamoyloxysilanes via quantitative insertion reactions of CO2 into the Si-N bonds [3,4].[1] F. Bitto, J. Wagler, E. Kroke, Eur. J. Inorg. Chem. 2012 , 2402-2408.[2] C. M�ller, K. Kraushaar, A. Doebbe, J. H. Mussgnug, O. Kruse, E. Kroke, A. V. Patel, Chem. Commun. 2013 , 10163-10165.[3] K. Kraushaar, C. Wiltzsch, J. Wagler, U. B�hme, A. Schwarzer, E. Kroke, Organometallics 2012  , 31(13), 4779-4785.[4] K. Kraushaar, D. Schmidt, A. Schwarzer, E. Kroke, Adv. Inorg. Chem. 2014  , 66, 117-162.

Tetra(amino)silanes - synthesis and properties

248th National Meeting (2014)

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