1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
Synonym(s):1,4-Bis(trimethylsilyl)-1,3-butadiyne;BTMSBD
- CAS NO.：4526-07-2
- Empirical Formula: C10H18Si2
- Molecular Weight: 194.42
- MDL number: MFCD00009839
- EINECS: 629-258-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:40:45
What is 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE?
Chemical properties
light yellow to light beige cryst.powder or flakes
The Uses of 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
1,4-Bis(trimethylsilyl)butadiyne can be used as a reagent to prepare:
- 1,1,3,4-Tetrasilyl-substituted 1,3-butadienes or 1,1,3,4-tetrasilyl-substituted 1,2-butadienes by hydrosilylation reaction using various hydridosilanes and catalysts.
- Glycosylated oligo(ethynylene)s using the Negishi reaction.
- (±) Falcarinol, a polyacetylene class of fatty alcohol.
The Uses of 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
1,4-Bis(trimethylsilyl)-1,3-butadiyne is used in Negishi protocol for the synthesis of glycosylated oligo(ethynylene)s. It is also used as pharmaceutical intermediates.
Properties of 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
| Melting point: | 111-113 °C(lit.) |
| Boiling point: | 197.7±23.0 °C(Predicted) |
| Density | 0.974 g/mL at 20 °C(lit.) |
| refractive index | n |
| Flash point: | >45°C |
| storage temp. | 2-8°C |
| form | solid |
| color | White to Light yellow to Light orange |
| Water Solubility | Insoluble in water. |
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
| BRN | 1758268 |
| CAS DataBase Reference | 4526-07-2(CAS DataBase Reference) |
Safety information for 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H228:Flammable solids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
| InChIKey | LBNVCJHJRYJVPK-UHFFFAOYSA-N |
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