360058

(Triphenylsilyl)acetylene

98%

• Synonym(s): 1,1′,1′′-(Ethynylsilylidyne)tris[benzene], Ethynyltriphenylsilane, Triphenylsilylacetylene, Triphenylsilylethyne
• Linear Formula: (C₆H₅)₃SiC≡CH
• CAS Number: 6229-00-1
• Molecular Weight: 284.43
• MDL number: MFCD00075453
• UNSPSC Code: 12352100
• PubChem Substance ID: 24862140
• NACRES: NA.22

Properties

• Quality Level: 100
• Assay: 98%
• mp: 48-50 °C (lit.)
• SMILES string: C#C[Si](c1ccccc1)(c2ccccc2)c3ccccc3
• InChI: 1S/C20H16Si/c1-2-21(18-12-6-3-7-13-18,19-14-8-4-9-15-19)20-16-10-5-11-17-20/h1,3-17H
• InChI key: WADKYPSVXRWORK-UHFFFAOYSA-N

Description

General description

(Triphenylsilyl)acetylene is a terminal alkyne. Rhodium-catalyzed asymmetric addition of (triphenylsilyl)acetylene to diphenylphosphinylallene is reported.

Application

(Triphenylsilyl)acetylene may be used in the synthesis of:

• selenothioic acid S-alkyl esters
• methyl 2-(di{ 3, 5-bis[(triphenylsilyl)ethynyl]phenyl}-phosphino)benzoate
• 2-(di{3,5-bis[(triphenylsilyl)ethynyl]phenyl}-phosphino)benzoic acid

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): 235.4 °F - closed cup
• Flash Point(C): 113 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves