399264

(tert-Butyldimethylsilyl)acetylen

99%

• Synonym(e): Ethinyl-tert.-butyldimethylsilan
• Lineare Formel: (CH₃)₃CSi(CH₃)₂C≡CH
• CAS-Nummer: 86318-61-8
• Molekulargewicht: 140.30
• Beilstein: 1921466
• MDL-Nummer: MFCD00191877
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24864798
• NACRES: NA.22

Eigenschaften

• Assay: 99%
• Brechungsindex: n20/D 1.451 (lit.)
• bp: 116-117 °C (lit.)
• Dichte: 0.751 g/mL at 25 °C (lit.)
• SMILES String: CC(C)(C)[Si](C)(C)C#C
• InChI: 1S/C8H16Si/c1-7-9(5,6)8(2,3)4/h1H,2-6H3
• InChIKey: RTYNRTUKJVYEIE-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

(tert-Butyldimethylsilyl)acetylene is a bulky trialkylsilyl-protected alkyne. It participates in Cadiot-Chodkiewicz cross-coupling reaction with various bromoalkynes to afford synthetically useful unsymmetrical diynes.

(tert-Butyldimethylsilyl)acetylene readily undergoes cross-dimerization reaction with various internal phenyl acetylenes in the presence of rhodium dimers and bidentate phosphine ligands to afford enynes.

Anwendung

(tert-Butyldimethylsilyl)acetylene may be used in the synthesis of β-alkynylketone and β-alkynyl aldehydes.

Sicherheitshinweise

• Piktogramme: GHS02
• Signalwort: Danger
• H-Sätze: H225
• P-Sätze: P210
• Gefahreneinstufungen: Flam. Liq. 2
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 3
• Flammpunkt (°F): 42.8 °F - closed cup
• Flammpunkt (°C): 6 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter