GB967789A - Method for the synthesis of ª‡,ªÏ-dihalogeno-organosiloxanes - Google Patents
Method for the synthesis of ª‡,ªÏ-dihalogeno-organosiloxanesInfo
- Publication number
- GB967789A GB967789A GB14590/63A GB1459063A GB967789A GB 967789 A GB967789 A GB 967789A GB 14590/63 A GB14590/63 A GB 14590/63A GB 1459063 A GB1459063 A GB 1459063A GB 967789 A GB967789 A GB 967789A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperatures
- atmospheres
- dihalogeno
- organosiloxanes
- synthesis
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 abstract 2
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 abstract 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 abstract 2
- 125000003342 alkenyl group Chemical group 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 125000006267 biphenyl group Chemical group 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 125000000962 organic group Chemical group 0.000 abstract 1
- -1 vinylmethyl- Chemical group 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
- C07F7/0872—Preparation and treatment thereof
- C07F7/0874—Reactions involving a bond of the Si-O-Si linkage
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicon Polymers (AREA)
Abstract
A process for the production of 1,9-dihalogenodecaorganopentasiloxanes comprises reacting a diorganodihalogenosilane with an octaorganocyclotetrasiloxane under superatmospheric pressure in a glass-lined vessel in the absence of a catalyst. The organic groups may be alkyl, aryl or alkenyl. Pressures from 1 to 200 atmospheres and temperatures of 200-400 DEG C. are suitable. The examples describe the reaction of dimethyldichlorosilane with octamethylcyclotetrasiloxane in molar ratios from 1.5:1 to 1:2, at temperatures from 250 DEG C. to 400 DEG C., at 80 atmospheres before heating. The reactions under autogeneous pressure (10-15 atm.) of diphenyl-, vinylmethyl-, and dimethyldichlorsilanes with octamethyl-cyclotetrasiloxane at 300 DEG C. are also described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN21455A DE1157614B (en) | 1962-04-14 | 1962-04-14 | Process for the preparation of 1, 9-dihalodecaorganopentasiloxanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB967789A true GB967789A (en) | 1964-08-26 |
Family
ID=7341725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14590/63A Expired GB967789A (en) | 1962-04-14 | 1963-04-11 | Method for the synthesis of ª‡,ªÏ-dihalogeno-organosiloxanes |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1157614B (en) |
| GB (1) | GB967789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789122A (en) * | 2021-10-14 | 2021-12-14 | 江苏乐离新材料科技有限公司 | Polyvinyl alcohol resin organic silicon modified water-soluble equipment protective film solution and preparation method thereof |
-
1962
- 1962-04-14 DE DEN21455A patent/DE1157614B/en active Pending
-
1963
- 1963-04-11 GB GB14590/63A patent/GB967789A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789122A (en) * | 2021-10-14 | 2021-12-14 | 江苏乐离新材料科技有限公司 | Polyvinyl alcohol resin organic silicon modified water-soluble equipment protective film solution and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1157614B (en) | 1963-11-21 |
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