1-TRIMETHYLSILOXY-1,3-BUTADIENE
- CAS NO.：6651-43-0
- Empirical Formula: C7H14OSi
- Molecular Weight: 142.27
- MDL number: MFCD00009647
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:02
What is 1-TRIMETHYLSILOXY-1,3-BUTADIENE?
Chemical properties
clear light yellow liquid
Physical properties
bp 131 °C, bp 49.5 °C/25 mmHg; d 0.811 g cm?3.
The Uses of 1-TRIMETHYLSILOXY-1,3-BUTADIENE
1-Trimethylsiloxy-1,3-butadiene is a diene used in the Diels-Alder reaction.
The Uses of 1-TRIMETHYLSILOXY-1,3-BUTADIENE
1-Trimethylsilyloxy-1,3-butadiene is an easily prepared reactive diene for Diels–Alder reactions and other cycloadditions; reactive silyl enol ether for aldol and Michael reactions, and electrophilic additions.
The Uses of 1-TRIMETHYLSILOXY-1,3-BUTADIENE
1-(Trimethylsiloxy)-1,3-butadiene is commonly employed as diene in the Diels-Alder reaction.
General Description
Mechanism of Diels-Alder reaction between 1-(trimethylsiloxy)-1,3-butadiene and 4,6-dinitrobenzofuroxan has been studied using state-of-the-art computational methods.
Purification Methods
Purify it by fractional distillation and collect the fractions with the required 1H NMR. Store it under N2 — it is a flammable and moisture-sensitive liquid. [Caseau et al. Bull Soc Chim Fr 16658 1972, Belge Patent 670,769, Chem Abstr 65 5487d 1966.]
Properties of 1-TRIMETHYLSILOXY-1,3-BUTADIENE
| Boiling point: | 131 °C(lit.) |
| Density | 0.811 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 77 °F |
| storage temp. | 2-8°C |
| solubility | Sol most standard organic solvents. |
| Specific Gravity | 0.811 |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1902024 |
Safety information for 1-TRIMETHYLSILOXY-1,3-BUTADIENE
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1-TRIMETHYLSILOXY-1,3-BUTADIENE
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