263567

1,4-Bis(trimethylsilyl)butadiin

98%, stable crystalline form of butadiyne

• Synonym(e): 1,4-Bis(trimethylsilyl)-1,3-butadiin, BTMSBD
• Lineare Formel: (CH₃)₃SiC≡CC≡CSi(CH₃)₃
• CAS-Nummer: 4526-07-2
• Molekulargewicht: 194.42
• Beilstein: 1758268
• MDL-Nummer: MFCD00009839
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24855983
• NACRES: NA.22

Eigenschaften

• Assay: 98%
• Form: solid
• Brechungsindex: n20/D 1.384 (lit.)
• mp (Schmelzpunkt): 111-113 °C (lit.)
• Dichte: 0.974 g/mL at 20 °C (lit.)
• Lagertemp.: 2-8°C
• SMILES String: C[Si](C)(C)C#CC#C[Si](C)(C)C
• InChI: 1S/C10H18Si2/c1-11(2,3)9-7-8-10-12(4,5)6/h1-6H3
• InChIKey: LBNVCJHJRYJVPK-UHFFFAOYSA-N

Beschreibung

Anwendung

1,4-Bis(trimethylsilyl)butadiyne can be used as a reagent to prepare:

• 1,1,3,4-Tetrasilyl-substituted 1,3-butadienes or 1,1,3,4-tetrasilyl-substituted 1,2-butadienes by hydrosilylation reaction using various hydridosilanes and catalysts.
• Glycosylated oligo(ethynylene)s using the Negishi reaction.
• (±) Falcarinol, a polyacetylene class of fatty alcohol.

Sicherheitshinweise

• Piktogramme: GHS02
• Signalwort: Danger
• H-Sätze: H228
• P-Sätze: P210
• Gefahreneinstufungen: Flam. Sol. 1
• Lagerklassenschlüssel: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type P3 (EN 143) respirator cartridges