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US 2013/0294995 A1Published application
Selective splitting of high order silanes
AssigneeEvonik Degussa GmbH
InventorsEkkehard Mueh, Hartwig Rauleder
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Abstract
The invention relates to a process for preparing monomeric and/or dimeric halogen- and/or hydrogen-containing silicon compounds from oligomeric inorganic silanes having three or more directly covalently interconnected silicon atoms substituted by substituents selected from halogen, hydrogen and/or oxygen by reacting the oligomeric silane over a nitrogen-containing catalyst in the presence of hydrogen halide.
Claims15
A process comprising:
- reacting an oligomeric silane or a mixture comprising an organic silane in the presence of hydrogen halide over a nitrogen-comprising catalyst, thereby obtaining a silicon compound of formula I:
- SinHxXy (I),
- wherein each X is independently a halogen,
- n is 1 or 2,
- x is an integer between 0 to 6,
- y is an integer between 0 to 6,
- y+x=2n+2,
- the oligomeric silane or mixture comprising an organic silane comprises three directly covalently connected silicon atoms, and
- substituents on the silicon atoms are each halogen, hydrogen, or oxygen.
6 more elements
(canceled)
Dependencies are inferred from the claim text.