GB787800A - A novel trisiloxane - Google Patents
A novel trisiloxaneInfo
- Publication number
- GB787800A GB787800A GB22262/56A GB2226256A GB787800A GB 787800 A GB787800 A GB 787800A GB 22262/56 A GB22262/56 A GB 22262/56A GB 2226256 A GB2226256 A GB 2226256A GB 787800 A GB787800 A GB 787800A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diphenylmethylsilanol
- dimethyldichlorosilane
- trisiloxane
- novel
- compound
- 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
- ZQTYRTSKQFQYPQ-UHFFFAOYSA-N trisiloxane Chemical compound [SiH3]O[SiH2]O[SiH3] ZQTYRTSKQFQYPQ-UHFFFAOYSA-N 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract 2
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 abstract 2
- MLPRTGXXQKWLDM-UHFFFAOYSA-N hydroxy-methyl-diphenylsilane Chemical compound C=1C=CC=CC=1[Si](O)(C)C1=CC=CC=C1 MLPRTGXXQKWLDM-UHFFFAOYSA-N 0.000 abstract 2
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 abstract 1
- 239000005046 Chlorosilane Substances 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 abstract 1
- 238000007334 copolymerization reaction Methods 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- YFCVAZGXPLMNDG-UHFFFAOYSA-N dimethyl-bis[[methyl(diphenyl)silyl]oxy]silane Chemical compound C=1C=CC=CC=1[Si](C)(C=1C=CC=CC=1)O[Si](C)(C)O[Si](C)(C=1C=CC=CC=1)C1=CC=CC=C1 YFCVAZGXPLMNDG-UHFFFAOYSA-N 0.000 abstract 1
- OKONWUJRLPUUJT-UHFFFAOYSA-N dimethyl-phenyl-triphenylsilyloxysilane Chemical compound C=1C=CC=CC=1[Si](C)(C)O[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 OKONWUJRLPUUJT-UHFFFAOYSA-N 0.000 abstract 1
- -1 dimethylsiloxane Chemical class 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract 1
- 229910000039 hydrogen halide Inorganic materials 0.000 abstract 1
- 239000012433 hydrogen halide Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
Abstract
The invention comprises the compound 1,1,5,5 - tetraphenyl - 1,3,3,5 - tetramethyltrisiloxane, useful as a vacuum diffusion pump fluid. It is best prepared by reacting diphenylmethylsilanol with dimethyldichlorosilane at a temperature below 100 DEG C. in the presence of a hydrogen halide acceptor such as pyridine in amount at least sufficient to react with all the hydrogen chloride produced. Less satisfactory methods of preparing the compound include: (1) cohydrolysis of the corresponding chlorosilanes; (2) catalytic copolymerization of tetraphenyldimethyldisiloxane and dimethylsiloxane; and (3) reaction of the sodium salt of diphenylmethylsilanol with dimethyldichlorosilane. Specifications 612,595 and 684,440 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US787800XA | 1955-10-07 | 1955-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB787800A true GB787800A (en) | 1957-12-18 |
Family
ID=22146171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22262/56A Expired GB787800A (en) | 1955-10-07 | 1956-07-18 | A novel trisiloxane |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR1158850A (en) |
| GB (1) | GB787800A (en) |
| NL (2) | NL209448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309557A (en) * | 1981-02-12 | 1982-01-05 | Nusil Research | Process for the preparation of alkyl and aryl substituted oligosiloxanes suitable for use as diffusion pump oils |
-
0
- NL NL95177D patent/NL95177C/xx active
- NL NL209448D patent/NL209448A/xx unknown
-
1956
- 1956-07-18 GB GB22262/56A patent/GB787800A/en not_active Expired
- 1956-09-06 FR FR1158850D patent/FR1158850A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309557A (en) * | 1981-02-12 | 1982-01-05 | Nusil Research | Process for the preparation of alkyl and aryl substituted oligosiloxanes suitable for use as diffusion pump oils |
Also Published As
| Publication number | Publication date |
|---|---|
| NL95177C (en) | 1900-01-01 |
| FR1158850A (en) | 1958-06-19 |
| NL209448A (en) | 1900-01-01 |
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