Patent · US Expired

Method for producing formoxysilane

US6518446B1 · kind B1 · utility

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2References

4Claims

0Family size

Assignee

Forschungszentrum Karlsruhe GmbH · DE

Inventors

Eckhard Dinjus · Leimersheim, DE
Stephan Pitter · Jena, DE
Achim Jansen · Jena, DE

Key dates

Filing date	Jan 24, 2002
Grant date	Feb 11, 2003
Priority date	—
Expiry date	Jan 24, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F7/188
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing formoxysilane. A silane of the formula RnSiH4−n, wherein R is an organic or inorganic substituent and n=0, 1, 2 or 3, is converted with carbon dioxide in a solvent in the presence of a catalyst consisting of a compound of a transitional metal pertaining to the subgroup VIIIb of the periodic system. The aim of the invention is to find a catalyst for the method mentioned above. The catalyst should be more simple, easy to produce and thus more cost-effective, easily available in large quantities and being provided with high activity and product selectivity. To this end, a halide of the transitional metal or a compound of the transitional metal are used as catalyst. Said compound is produced by converting a halide of the transitional metal with a nitrile in the presence of the silane of the formula RnSiH4−n.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.