GB657704A - Improvements in or relating to the production of organo-silicon compounds - Google Patents
Improvements in or relating to the production of organo-silicon compoundsInfo
- Publication number
- GB657704A GB657704A GB24635/48A GB2463548A GB657704A GB 657704 A GB657704 A GB 657704A GB 24635/48 A GB24635/48 A GB 24635/48A GB 2463548 A GB2463548 A GB 2463548A GB 657704 A GB657704 A GB 657704A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refluxed
- silicon
- methyl
- ethyl
- magnesium grignard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
Abstract
Polysiloxanes are prepared by a polymerization reaction in which an organo-silicon compound containing halogen bonded to silicon is reacted under non-hydrolysing conditions with an organosilicon compound containing an alkoxy or aryloxy group bonded to silicon. The corresponding alkyl or aryl halide is liberated and may be distilled off. In examples: (1) SiCl4 in toluene is treated with a mixture of ethyl and phenyl magnesium Grignard in ether/toluene, to give a chlorosilane, half of which is refluxed with methyl alcohol, the product being mixed with the other half and refluxed using ZnCl2 as catalyst; (2) as in (1), using methyl magnesium Grignard, and ethyl in place of methyl alcohol and FeCl3 in place of ZnCl2; (3) a chlorosilane made as in (1) is mixed with an ethoxysilane made by treating ethyl orthosilicate with a mixture of methyl and phenyl magnesium Grignard in ether/toluene, and refluxed in the presence of AlCl3. The products are oils which may be used in paints, in vacuum pumps or in brakes.ALSO:Polysiloxanes are prepared by a polymerization reaction in which an organosilicon compound containing halogen bonded to silicon is reacted under non-hydrolysing conditions with an organosilicon compound containing an alkoxy or aryloxy group bonded to silicon. The corresponding alkyl or aryl halide is liberated and may be distilled off. In examples: (1) SiCl4 in toluene is treated with a mixture of ethyl and phenyl magnesium Grignard to give a chlorosilane, half of which is refluxed with methyl alcohol, the product being mixed with the other half and refluxed using ZnCl2 as catalyst; (2) as in (1), using methyl magnesium Grignard, ethyl in place of methyl alcohol and FeCl3 in place of ZnCl2; (3) a chlorosilane made as in (1) is mixed with an ethoxysilane made by treating ethyl orthosilicate with a mixture of methyl and phenyl magnesium Grignard and refluxed in the presence of AlCl3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE657704X | 1947-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB657704A true GB657704A (en) | 1951-09-26 |
Family
ID=3877008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24635/48A Expired GB657704A (en) | 1947-09-20 | 1948-09-20 | Improvements in or relating to the production of organo-silicon compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB657704A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003084967A1 (en) * | 2002-04-04 | 2003-10-16 | Dow Corning Corporation | Process for chlorosilane intermediates manufacture |
| US7351847B2 (en) | 2004-01-06 | 2008-04-01 | Dow Corning Corporation | Grignard processes with increased content of diphenylchlorosilanes |
| US7456308B2 (en) | 2004-01-06 | 2008-11-25 | Dow Corning Corporation | Grignard processes with improved yields of diphenylchlorosilanes as products |
| CN112940029A (en) * | 2019-12-11 | 2021-06-11 | 新特能源股份有限公司 | Methyl chlorosilane, preparation method and device |
-
1948
- 1948-09-20 GB GB24635/48A patent/GB657704A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003084967A1 (en) * | 2002-04-04 | 2003-10-16 | Dow Corning Corporation | Process for chlorosilane intermediates manufacture |
| CN1298724C (en) * | 2002-04-04 | 2007-02-07 | 陶氏康宁公司 | Process for chlorosilane intermediates manufacture |
| US7351847B2 (en) | 2004-01-06 | 2008-04-01 | Dow Corning Corporation | Grignard processes with increased content of diphenylchlorosilanes |
| US7456308B2 (en) | 2004-01-06 | 2008-11-25 | Dow Corning Corporation | Grignard processes with improved yields of diphenylchlorosilanes as products |
| CN112940029A (en) * | 2019-12-11 | 2021-06-11 | 新特能源股份有限公司 | Methyl chlorosilane, preparation method and device |
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