2,3-DIMETHYL-1,3-BUTADIENE
- CAS NO.：513-81-5
- Empirical Formula: C6H10
- Molecular Weight: 82.14
- MDL number: MFCD00008595
- EINECS: 208-172-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-03-29 18:52:01
What is 2,3-DIMETHYL-1,3-BUTADIENE?
Chemical properties
Clear colorless liquid
The Uses of 2,3-DIMETHYL-1,3-BUTADIENE
2,3-Dimethyl-1,3-butadiene undergoes Diels Alder cycloaddition reaction and it also participates in polymerization reactions. It is also involved in manufacturing of synthetic rubber.
General Description
2,3-Dimethyl-1,3-butadiene (DMBD) is a conjugated diene. It undergoes Diels Alder cycloaddition reaction with 2-thio-3-chloroacrylamides under thermal, catalytic and microwave conditions. It undergoes thermal [4+2] cycloaddition reaction with 3-acetyl-, 3-carbamoyl and 3-ethoxycarbonylcoumarins under solvent free conditions. DMBD participates in polymerization reactions in the presence of iron dichloride complexes based catalysts.
Purification Methods
Distil it from NaBH4, and purify it by zone melting. [Beilstein 1 IV 1023.]
Properties of 2,3-DIMETHYL-1,3-BUTADIENE
| Melting point: | -76 °C (lit.) |
| Boiling point: | 68-69 °C (lit.) |
| Density | 0.726 g/mL at 25 °C (lit.) |
| vapor pressure | 269 mm Hg ( 37.7 °C) |
| refractive index | n |
| Flash point: | −8 °F |
| storage temp. | 2-8°C |
| form | Liquid |
| color | Clear colorless |
| Water Solubility | Miscible with chloroform. Immiscible with water. |
| Merck | 14,3238 |
| BRN | 605285 |
| Dielectric constant | 2.1000000000000001 |
| CAS DataBase Reference | 513-81-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3-Butadiene, 2,3-dimethyl- (513-81-5) |
Safety information for 2,3-DIMETHYL-1,3-BUTADIENE
| 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 2,3-DIMETHYL-1,3-BUTADIENE
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