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1. CN101228209 - Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes

Office China
Application Number 200580050953.8
Application Date 29.08.2005
Publication Number 101228209
Publication Date 23.07.2008
Publication Kind A
IPC
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
77
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
04
Polysiloxanes
12
containing silicon bound to hydrogen
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
77
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
04
Polysiloxanes
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
77
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
04
Polysiloxanes
06
Preparatory processes
08
characterised by the catalysts used
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
F
ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
7
Compounds containing elements of the 4th Group of the Periodic System
02
Silicon compounds
08
Compounds having one or more C-Si linkages
C08G 77/12
C08G 77/04
C08G 77/08
C07F 7/08
Applicants Momentive Performance Material
莫门蒂夫功能性材料公司
Inventors Rubinszrajn Slawomir
斯瓦沃米尔·鲁宾斯泰因
Cella James Anthony
詹姆士·安东尼·塞拉
Chojnowski Julian
朱利安·霍伊诺夫斯基
Fortuniak Witold
维托尔德·福图尼亚克
Kurjata Jan
贾恩·库里亚塔
Agents wanghai chuan fanwei min
中原信达知识产权代理有限责任公司
中原信达知识产权代理有限责任公司
Priority Data P-376014 30.06.2005 PL
11185466 20.07.2005 US
Title
(EN) Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes
(ZH) 通过氢化硅氧烷的歧化合成二有机硅烷的方法
Abstract
(EN)
The present invention provides a novel method for the preparation of diorganosilanes by disproportionation of a hydridosiloxanes comprising at least one terminal SiH group and at least one siloxane bond in the presence of Lewis acid catalysts. The reaction is both selective and occurs under mild conditions. The triaryl borane, tris(petafluorophenyl)borane, is especially suited for use as a catalyst in the reaction. Organic catalysts such as tris(pentafluorophenyl)borane are typically preferred owing to their greater solubility and stability in the reaction mixture, relative to inorganic Lewis acid catalysts. The product, diorganosilane may be isolated from the product mixture by conventional techniques such as distillation.

(ZH)

本发明提供了一种在存在路易斯酸催化剂的情况下通过氢化硅氧烷的歧化来制备二有机硅烷的新型方法,所述氢化硅氧烷包括至少一个SiH端基和至少一个硅氧键。该反应具有选择性且在温和条件下发生。三芳基硼烷、三(五氟苯基)硼烷特别适合用作该反应中的催化剂。由于它们相对于无机路易斯酸催化剂在反应混合物中的更大溶解度和稳定性,有机催化剂例如三(五氟苯基)硼烷通常是优选的。产物二有机硅烷可以通过常规方法例如蒸馏从产物混合物中分离出来。