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tert-Butylchlordimethylsilan
TBSCL · TBDMSCL · TERT-BUTYLCHLORODIMETHYLSILANE · TBSCI · TBDMSCI · TERT-BUTYLDIMETHYLCHLOROSILANE · T-BUTYLDIMETHYLSILYL CHLORIDE · tert-Butyldimethylsilyl

Identifikatoren & physikalische Daten
| CAS No. | 18162-48-6 |
|---|---|
| Summenformel | C6H15ClSi |
| Durchschnittliche Molmasse | 150,72 g/mol |
| Monoisotopische Masse | 150,06315469 g/mol |
| SMILES | CC(C)(C)[Si](C)(C)Cl |
| InChIKey | BCNZYOJHNLTNEZ-UHFFFAOYSA-N |
| PubChem CID | 28928 |
| ChEBI | CHEBI:85071 |
| EC No. | 242-042-4 |
| DTXSID | DTXSID4038843 |
| Lokaler Name | tert-Butylchlordimethylsilan |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 0 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 0 |
| Frei drehbare Bindungen | 1 |
| Schwere Atome | 8 |
| Formalladung | 0 |
| Komplexität | 81 |
| Stoffklassen | Toxic Gases & Vapors -> Chlorosilanes |
| SpringerMaterials Properties | Schoenflies notation |
| Physical Description | White hygroscopic solid[Merck Index] White crystals with a pungent odor[Alfa Aesar MSDS] |
| Schmelzpunkt | 86-89 °C (lit.) |
| Siedepunkt | 125 °C (lit.) |
| Dichte | 0.87 g/mL at 20 °C(lit.) |
| Dampfdruck | 60-710Pa at 25℃ |
| Brechungsindex | n20/D 1.46 |
| Flammpunkt | 73 °F |
| Lagerbedingungen | Store below +30°C. |
| Löslichkeit | very sol nearly all common organic solvents such as THF, methylene chloride, and DMF.Soluble in chloroform and ethyl acetate. Insoluble in water. |
| Aggregatzustand | white solid |
| Farbe | white |
| Wichte | 1.225 |
| BRN | 505999 |
| InChI | 1S/C6H15ClSi/c1-6(2,3)8(4,5)7/h1-5H3 |
| InChIKey | BCNZYOJHNLTNEZ-UHFFFAOYSA-N |
| SMILES | CC(C)(C)[Si](C)(C)Cl |
| LogP (Verteilungskoeffizient) | 2.5 at 20℃ |
| CAS Datenbank | 18162-48-6(CAS DataBase Reference) |
| NIST chemische Informationen | Silane, chloro(1,1-dimethylethyl)dimethyl-(18162-48-6) |
| EPA chemische Informationen | Silane, chloro(1,1-dimethylethyl)dimethyl- (18162-48-6) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 23.7% (56 of 236) of reports.DangerH228 (57.6%): Flammable solid [Danger Flammable solids]P210, P240, P241, P260, P261, P264, P264+P265, P271, P273, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P321, P363, P370+P378, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 236 reports by companies from 20 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | Chemical: Silane, chloro(1,1-dimethylethyl)dimethyl-Status: Active Update: 30-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/28118Silane, t-butylchlorodimethyl-: Does not have an individual approval but may be used under an appropriate group standard |
| Gefahrenübersicht | Causes decreased immune response in intraperitoneal lethal-dose studies of mice (LDLo = 1,000 mg/kg)[RTECS] Corrosive[Merck Index] Reacts with water producing hydrochloric acidCauses burnsInhalation may cause corrosive injuries to upper respiratory tract[Alfa Aesar MSDS] See Chlorotrimethylsilane. |
| Hazard Classes and Categories | Flam. Sol. 1 (57.6%) |
| Unerwünschte Wirkungen | Dermatotoxin - Skin burns. |
| F | 10-21 |
| Wassergefährdungsklasse (WGK) | 2 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 2925 4.1/PG 2 |
| Zollcode | 29310095 |
| RTECS-Nr. | VV2000000 |
| R-Sätze (R) | 22-35-40-34-10-19-11-67-65-63-48/20-20/21/22-45-23/24/25-37-36/37/38 |
Herstellung & Synthese
synthetische
tert-butyldimethylsilyl chloride (TBSCI) was synthesized by the reaction of tert-butyllithium with dichlorodimethylsilane.The pentane solution of dichlorodimethylsilane was cooled to 0°C, and the pentane solution of tert-butyllithium was added dropwise with stirring under nitrogen. The temperature was maintained at 0 °C, stirred for 1.5 h and then heated to 25 °C, and the reaction was continued for 48 h. Distillation, collect 125 ℃ (97.5kPa) fractions, stand to solidify, and obtain tert-butyldimethylsilyl chloride. Yield 70%.