Halogenated Tetrasilyl Boranates
AssigneeWacker Chemie AG
InventorsElke FRITZ-LANGHALS, Sebastian BOCHMANN, Lars RUPPEL
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Abstract
The invention relates to halogenated tetrasilylboranates of the general formula Mz+[B(SiRmXn)4−]z (I), where the radicals and indices have the meanings indicated in claim 1, with the proviso that m+n=3, processes for the production thereof and also the use.
Claims9
1-8. (canceled)
A halogenated tetrasilylboranate, comprising:
- wherein the halogenated tetrasilylboranate has the general formula
- Mz+[B(SiRmXn)4−]z (I),
- wherein Mz+ is an inorganic or organic cation;
- wherein z is 1 or 2, preferably 1;
- wherein R is identical or different on each occurrence and is a hydrogen atom or hydrocarbon radical having from 1 to 3 carbon atoms;
- wherein X is identical or different on each occurrence and is a halogen atom;
- wherein m is 0, 1 or 2;
- wherein n is 1, 2 or 3;
- and
- wherein m+n=3.
A process for producing a tetrasilylboranates, comprising:
- reacting boron trihalides with at least two different halosilanes bearing Si-bonded hydrogen, and wherein the boranate obtained in this way is reacted with a proton acceptor (B) in an optionally performed further step.
A process for converting compounds (H) bearing Si-bonded hydrogen into the corresponding compounds bearing Si-bonded halogen atoms by a reaction with halogenated hydrocarbons (K) in the presence of compounds of the general formula (I) wherein X is Cl and Mz+ is H+ as catalyst.
Dependencies are inferred from the claim text.