Process for the preparation of dodecahaloneopentasilanes
US8512666B2 · kind B2 · utility
1Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B33/107
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a method for producing neopentasilanes of the general formula (1) Si(SiR3)4 (1), wherein silicon compounds of the general formula (2) R3Si— (SiR2—)xSiR3 (2), where R is selected from Cl, Br, and I, and x is a non-negative whole number up to 5, are converted in the presence of catalytically active compounds (K), wherein the separating of the tetrahalogen silane formed thereby takes place by distilling out in the presence of a compound (L) that is liquid at room temperature having a higher boiling point than the released tetrahalogen silane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.