Partially hydrogenated chlorosilanes and methods for preparing same by selective hydrogenation

US11827522B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Michael Haas · Graz, AT
• Harald Stüger · Graz, AT
• Thomas Lainer · Graz, AT
• Odo Wunnicke · Dresden, DE
• Michael Holthausen · Haltern am See, DE

Key dates

• Filing date: Jun 7, 2019
• Grant date: Nov 28, 2023
• Expiry date: Jul 18, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/0803
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method is useful for preparing partially hydrogenated chlorosilanes by selective hydrogenation with a compound of the formula R2AlH, wherein R is a branched or cyclic hydrocarbon. Partially hydrogenated chlorosilanes can be prepared with said method, in particular partially hydrogenated chlorosilanes represented by the formula Cl3SiSi(SiH3)3, (Cl3Si)2Si(SiH3)2 or HSi(SiH3)2SiCl3.