GB624550A - A process for the manufacture of organo-silicon compounds - Google Patents
A process for the manufacture of organo-silicon compoundsInfo
- Publication number
- GB624550A GB624550A GB1737847A GB1737847A GB624550A GB 624550 A GB624550 A GB 624550A GB 1737847 A GB1737847 A GB 1737847A GB 1737847 A GB1737847 A GB 1737847A GB 624550 A GB624550 A GB 624550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- chloromethyl
- chlorsilane
- dimethyl
- added
- 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
Organo-silicon polymers containing units -CH2.SiRR1- are obtained by reacting in the liquid phase a compound of the type XCH2.SiRR1Y (where X is a halogen, Y is a halogen or an alkoxy radical and R and R1, which may be the same or different, are phenyl or alkyl radicals) with an alkali metal or alkali metal amide. Preferably, the halogen is chlorine or bromine and the alkoxy ethoxy. The alkali metal may be solid, e.g. in cut pieces, or liquid, e.g. suspended, at a temperature above its melting point, in a liquid hydrocarbon. Sodium, sodium-potassium eutectic and sodium amide are specified. The oily products may be used as lubricant or as hydraulic, damping, water-proofing and electric insulating fluids. In examples: (1) sodium was added to refluxing dimethyl (chloromethyl) ethoxy silane; (2) sodium was added to refluxing dimethyl (chloromethyl) chlorsilane; a siloxane was prepared from the product by hydrolysis-condensation with alcoholic caustic potash; (3) sodium was added to dimethyl (chloromethyl) chlorsilane in xylene; (4) dimethyl chloromethyl chlorsilane; (5) methyl phenyl chloromethyl chlorsilane; or (6) methyl butyl chloromethyl chlorsilane was added to liquid sodium suspended in toluene.ALSO:Organo-silicon polymers containing units -CH2.SiRR1- are obtained by reacting in the liquid phase a compound of the type XCH2.SiRR1Y (where X is a halogen, Y is a halogen or an alkoxy radical, and R and R1, which may be the same or different, are phenyl or alkyl radicals) with an alkali metal or alkali metal amide. Preferably, the halogen is chlorine or bromine and the alkoxy ethoxy. The alkali metal may be solid, e.g. in cut pieces, or liquid, e.g. suspended, at a temperature above its melting point, in a hydrocarbon. Sodium, sodium-potassium eutectic, and sodium amide are specified. The oily products may be used as lubricants or as hydraulic, damping, water-proofing and electric insulating fluids. In examples: (1) sodium was added to refluxing dimethyl chloromethyl ethoxysilane; (2) sodium was added to dimethyl chloromethyl chlorsilane; a siloxane was prepared from the product by hydrolysis-condensation with alcoholic caustic potash; (3) sodium was added to dimethyl chloromethyl chlorsilane in xylene; (4) dimethyl chloromethyl chlorsilane; (5) methyl phenyl chloromethyl chlorsilane; or (6) methyl butyl chloromethyl chlorsilane was added to liquid sodium suspended in toluene. Dimethyl chloromethyl chlorsilane is prepared by direct chlorination of trimethyl chlorsilane and the equivalent ester by reacting the product with an alcohol. Alternatively, methyl trichlorsilane may be chlorinated to give chloromethyl trichlorsilane and this reacted with a methyl, ethyl, octadecyl, phenyl or other Grignard reagent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1737847A GB624550A (en) | 1947-07-01 | 1947-07-01 | A process for the manufacture of organo-silicon compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1737847A GB624550A (en) | 1947-07-01 | 1947-07-01 | A process for the manufacture of organo-silicon compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB624550A true GB624550A (en) | 1949-06-10 |
Family
ID=10094148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1737847A Expired GB624550A (en) | 1947-07-01 | 1947-07-01 | A process for the manufacture of organo-silicon compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB624550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401611A (en) * | 2018-09-26 | 2019-03-01 | 广州华新科智造技术有限公司 | A kind of silicon gel sound insulation damping material and preparation method thereof |
-
1947
- 1947-07-01 GB GB1737847A patent/GB624550A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401611A (en) * | 2018-09-26 | 2019-03-01 | 广州华新科智造技术有限公司 | A kind of silicon gel sound insulation damping material and preparation method thereof |
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