1,1,3,3-Tetramethyl-1,3-divinyldisiloxan
1,3-DIVINYLTETRAMETHYLDISILOXANE · 1,1,3,3-TETRAMETHYL-1,3-DIVINYLDISILOXANE · 1,3-DIVINYL-1,1,3,3-TETRAMETHYLDISILOXANE · tetramethyldivinyldisiloxane · Tetramethyldivinylsiloxane · TETRAMETHYL-1,3-DIVINYLDISILOXANE · 1,1,3,3-Tetramethyl-1,3-divinylsiloxane · 1,3-diethenyl-1,1,3,3-tetramethyl-disiloxan
Identifikatoren & physikalische Daten
| CAS No. | 2627-95-4 |
|---|---|
| Summenformel | C8H18OSi2 |
| Durchschnittliche Molmasse | 186,4 g/mol |
| Monoisotopische Masse | 186,08961826 g/mol |
| SMILES | C=C[Si](C)(C)O[Si](C)(C)C=C |
| InChIKey | BITPLIXHRASDQB-UHFFFAOYSA-N |
| PubChem CID | 75819 |
| ChEMBL | CHEMBL1878672 |
| EC No. | 220-099-6 |
| DTXSID | DTXSID7038810 |
| Lokaler Name | 1,1,3,3-Tetramethyl-1,3-divinyldisiloxan |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 9,2 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 1 |
| Frei drehbare Bindungen | 4 |
| Schwere Atome | 11 |
| Formalladung | 0 |
| Komplexität | 143 |
| Stoffklassen | Metals -> Metalloid Compounds (Silicon) |
| SpringerMaterials Properties | Chemical shift |
| Physical Description | LiquidColorless liquid[Alfa Aesar MSDS] |
| Schmelzpunkt | -99 °C (lit.) |
| Siedepunkt | 139 °C (lit.) |
| Dichte | 0.809 g/mL at 25 °C (lit.) |
| Dampfdruck | 17hPa at 25℃ |
| Brechungsindex | n20/D 1.411(lit.) |
| Flammpunkt | 76 °F |
| Lagerbedingungen | Flammables area |
| Aggregatzustand | liquid |
| Wichte | 0.811 |
| Farbe | colorless |
| Löslichkeit | insoluble |
| BRN | 1762585 |
| Kosmetik-Inhaltsstoffe Funktionen | CHELATING |
| InChI | 1S/C8H18OSi2/c1-7-10(3,4)9-11(5,6)8-2/h7-8H,1-2H2,3-6H3 |
| InChIKey | BITPLIXHRASDQB-UHFFFAOYSA-N |
| SMILES | C[Si](C)(O[Si](C)(C)C=C)C=C |
| LogP (Verteilungskoeffizient) | 5.4 at 20℃ |
| CAS Datenbank | 2627-95-4(CAS DataBase Reference) |
| NIST chemische Informationen | Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-(2627-95-4) |
| EPA chemische Informationen | 1,3-Divinyl-1,1,3,3-tetramethyl disiloxane (2627-95-4) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 0.4% (1 of 263) of reports.DangerH225 (94.3%): Highly Flammable liquid and vapor [Danger Flammable liquids]P203, P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P318, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 263 reports by companies from 18 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | Chemical: Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 12-04-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/14606Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right. |
| Gefahrenübersicht | Causes somnolence and convulsions in inhalation lethal-concentration studies of rats[RTECS] A skin and strong eye irritant[Alfa Aesar MSDS] |
| Hazard Classes and Categories | Flam. Liq. 2 (94.3%) |
| Unerwünschte Wirkungen | Neurotoxin - Other CNS neurotoxin |
| Toxicity Data | LCLo (rat) = 111,000 mg/m3/1hr |
| F | 10-21 |
| Wassergefährdungsklasse (WGK) | 2 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 1993 3/PG 2 |
Anwendungen & Verwendung
Verwenden
Divinyl tetramethyl disiloxane could be used as a additives(intermediates) in the production process of addition silicone rubber, silicone gel, liquid silicone, vinyl silicone resin, vinyl silicone oil, platinum chromium compound and others. POTENTIAL VINYL NUCLEOPHILE IN CROSS-COUPLING REACTIONS. 1,3-Divinyltetramethyldisiloxane acts as a potential vinyl donor used in cross-coupling reactions. It is also involved in the copolymerization reaction with aromatic ketones.
Herstellung & Synthese
synthetische
The patent reports a method for preparing tetramethyldivinyldisiloxane, comprising the following steps: (1) mixing tetramethyldihydrogendisiloxane with a chloroplatinic acid catalyst to obtain a mixed solution; (2) bubbling acetylene into the mixed solution to carry out a hydrosilylation reaction, and after the reaction is completed, separating and purifying the reaction solution to obtain Divinyltetramethyldisiloxane.