187437

Bis(trimethylsilyl)acetylen

99%

• Synonym(e): BTMSA
• Lineare Formel: (CH₃)₃SiC≡CSi(CH₃)₃
• CAS-Nummer: 14630-40-1
• Molekulargewicht: 170.40
• Beilstein: 906870
• EG-Nummer: 238-671-9
• MDL-Nummer: MFCD00008276
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24851275
• NACRES: NA.22

Eigenschaften

• Assay: 99%
• Brechungsindex: n20/D 1.427 (lit.)
• bp: 136-137 °C (lit.)
• mp (Schmelzpunkt): 21-24 °C (lit.)
• Dichte: 0.752 g/mL at 25 °C (lit.)
• Lagertemp.: 2-8°C
• SMILES String: C[Si](C)(C)C#C[Si](C)(C)C
• InChI: 1S/C8H18Si2/c1-9(2,3)7-8-10(4,5)6/h1-6H3
• InChIKey: ZDWYFWIBTZJGOR-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

In the presence of CpCo(CO)₂ (cat. no. 245259), undergoes cycloaddition with 1,5-hexadiynes to form benzocyclobutenes.

Anwendung

Bis(trimethylsilyl)acetylene (BTMSA) was used as starting reagent in the synthesis of functionalized 4-R-1,2-bis(trimethylsilyl)benzenes. It was also used in the synthesis of (+)-brasilenyne and (β-diketanato)Ag(BTMSA).

Sicherheitshinweise

• Piktogramme: GHS02,GHS07
• Signalwort: Danger
• H-Sätze: H225,H315,H319,H335
• P-Sätze: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 3
• Flammpunkt (°F): 35.6 °F - closed cup
• Flammpunkt (°C): 2 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter