346977

(Triethylsilyl)acetylen

97%

• Synonym(e): Ethinyl-triethylsilan
• Lineare Formel: (C₂H₅)₃SiC≡CH
• CAS-Nummer: 1777-03-3
• Molekulargewicht: 140.30
• Beilstein: 1743814
• MDL-Nummer: MFCD00075373
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24861453
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 100
• Assay: 97%
• Form: liquid
• Brechungsindex: n20/D 1.433 (lit.)
• Dichte: 0.783 g/mL at 25 °C (lit.)
• SMILES String: CC[Si](CC)(CC)C#C
• InChI: 1S/C8H16Si/c1-5-9(6-2,7-3)8-4/h1H,6-8H2,2-4H3
• InChIKey: FWSPXZXVNVQHIF-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

(Triethylsilyl)acetylene, a bulky trialkylsilyl-protected alkyne, undergoes Cadiot-Chodkiewicz cross-coupling reaction with various bromoalkynes to yield synthetically useful unsymmetrical diynes. Rhodium-catalyzed dimerization of (triethylsilyl)acetylene has been reported.

Anwendung

(Triethylsilyl)acetylene may be used in the synthesis of triethylsilylethynyl anthradithiophenes, such as :

• 2,8-dimethyl-5,11-bis(triethylsilylethynyl)ADT (ADT= anthradithiophene)
• 2,8-diethyl-5,11-bis(triethylsilylethynyl)ADT
• 2,8-dipropyl-5,11-bis(triethylsilylethynyl)ADT

Sicherheitshinweise

• Piktogramme: GHS02
• Signalwort: Danger
• H-Sätze: H225
• P-Sätze: P210 - P370 + P378 - P403 + P235
• Gefahreneinstufungen: Flam. Liq. 2
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 3
• Flammpunkt (°F): 62.6 °F - closed cup
• Flammpunkt (°C): 17 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter