(Triethylsilyl)acetylene
Synonym(s):Ethynyltriethylsilane
- CAS NO.：1777-03-3
- Empirical Formula: C8H16Si
- Molecular Weight: 140.3
- MDL number: MFCD00075373
- EINECS: 628-759-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:54:21
What is (Triethylsilyl)acetylene?
Chemical properties
Clear colorless to faintly yellow liquid
The Uses of (Triethylsilyl)acetylene
(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
What are the applications of Application
(Triethylsilyl)acetylene is a large, trialkylsilyl-protected terminal alkyne
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.
Properties of (Triethylsilyl)acetylene
| Melting point: | 95-97 °C(Solv: chloroform (67-66-3); hexane (110-54-3)) |
| Boiling point: | 136 °C |
| Density | 0.783 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 63 °F |
| storage temp. | Flammables area |
| form | liquid |
| Specific Gravity | 0.783 |
| color | colorless |
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
| BRN | 1743814 |
| CAS DataBase Reference | 1777-03-3(CAS DataBase Reference) |
Safety information for (Triethylsilyl)acetylene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H225:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. |
Computed Descriptors for (Triethylsilyl)acetylene
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