TERT-BUTYLDIMETHYLSILYLACETYLENE
Synonym(s):Ethynyl-tert-butyldimethylsilane
- CAS NO.：86318-61-8
- Empirical Formula: C8H16Si
- Molecular Weight: 140.3
- MDL number: MFCD00191877
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-04 15:29:19
What is TERT-BUTYLDIMETHYLSILYLACETYLENE?
Chemical properties
Clear colorless liquid
The Uses of TERT-BUTYLDIMETHYLSILYLACETYLENE
tert-Butyldimethylsilylacetylene may be used in the synthesis of β-alkynylketone and β-alkynyl aldehydes. It participates in Cadiot-Chodkiewicz cross-coupling reaction with various bromoalkynes to afford synthetically useful unsymmetrical diynes.
General Description
(tert-Butyldimethylsilyl)acetylene is a bulky trialkylsilyl-protected alkyne. It participates in Cadiot-Chodkiewicz cross-coupling reaction with various bromoalkynes to afford synthetically useful unsymmetrical diynes.
Properties of TERT-BUTYLDIMETHYLSILYLACETYLENE
| Melting point: | 98-102℃ (chloroform hexane ) |
| Boiling point: | 116-117 °C (lit.) |
| Density | 0.751 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 43 °F |
| storage temp. | Flammables area |
| form | powder to lump to clear liquid |
| color | White or Colorless to Almost white or Almost colorless |
| Specific Gravity | 0.751 |
| Water Solubility | Sparingly soluble in water (0.043 g/L at 25°C). |
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
| BRN | 1921466 |
| CAS DataBase Reference | 86318-61-8 |
Safety information for TERT-BUTYLDIMETHYLSILYLACETYLENE
| 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. |
Computed Descriptors for TERT-BUTYLDIMETHYLSILYLACETYLENE
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![1,6-BIS-(TRIISOPROPYLSILYL)-3,4-BIS[2-(TERT-BUTYLDIMETHYLSILYL)ETHYNYL]-3-HEXEN-1,5-DIYNE](https://img.chemicalbook.in/StructureFile/ChemBookStructure7/GIF/CB2206105.gif)
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