346977
(Triethylsilyl)acetylene
97%
Synonym(s):
Ethynyltriethylsilane
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About This Item
Linear Formula:
(C2H5)3SiC≡CH
CAS Number:
Molecular Weight:
140.30
Beilstein:
1743814
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
Assay
97%
form
liquid
refractive index
n20/D 1.433 (lit.)
density
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
InChI key
FWSPXZXVNVQHIF-UHFFFAOYSA-N
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General description
(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.
Application
(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
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Liq. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
62.6 °F - closed cup
Flash Point(C)
17 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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