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Efficient Synthesis of Substituted Diarylsilanes

Peter Gigler, Wolfgang A. Herrmann*, Fritz E. Kühn*

*Institut für Siliciumchemie, Lehrstuhl für Anorganische Chemie, Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching b. München, Germany, Email:,

P. Gigler, W. A. Herrmann, F. E. Kühn, Synthesis, 2010, 1431-1432.

DOI: 10.1055/s-0029-1218696


Treatment of substituted arylbromides with tert-butyllithium in diethyl ether at -78˚C, followed by the addition to dichlorodiethoxysilane, leads to the quantitative formation of diaryldiethoxysilanes. Diaryldiethoxysilanes can be reduced to the corresponding diarylsilanes by stirring with lithium aluminum hydride in diethyl ether. This method avoids the handling of gaseous and explosive dichlorosilane.

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Key Words

arylation, hydrosilylation, lithiation, reduction, silicon, arylsilanes, arylsiloxanes, LAH

ID: J66-Y2010-1140