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2,3-Dimethyl-1,3-butadiene

ALDRICH/145491 - 98%, contains 100 ppm BHT as stabilizer

Synonym: 2,3-Dimethylbuta-1,2-diene; 2,3-Dimethylenebutane; Biisopropenyl; Diisopropenyl

CAS Number: 513-81-5
Empirical Formula (Hill Notation): C6H10
Molecular Weight: 82.14
EC Number: 208-172-0
MDL Number: MFCD00008595
Linear Formula: CH2=C(CH3)C(CH3)=CH2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-145491-10G 10 g
 $130.00
1/EA		 Add To Favorites
45-145491-50G 50 g
 $328.00
1/EA		 Add To Favorites

 

assay 98%
bp 68-69 °C (lit.)
contains 100 ppm BHT as stabilizer
density 0.726 g/mL at 25 °C (lit.)
form liquid
InChI 1S/C6H10/c1-5(2)6(3)4/h1,3H2,2,4H3
InChI key SDJHPPZKZZWAKF-UHFFFAOYSA-N
mp −76 °C (lit.)
Quality Level 200 
refractive index n20/D 1.438 (lit.)
SMILES string CC(=C)C(C)=C
storage temp. 2-8°C
vapor pressure 269 mmHg ( 37.7 °C)
Application: 2,3-Dimethyl-1,3-butadiene was used to investigate the reactions of 1,3-dienes with the Si(001) surface using scanning tunneling microscopy and fourier transform infrared spectroscopy.
It may be used in the following processes:
• Preparation of 1,3,6-triene derivatives of corresponding 1-aryl-substituted 1,3-dienes by 1,4-hydrobutadienylation in the presence of cobalt catalyst.
• Synthesis of 6-aryl(hetaryl)-3,4-dimethyl-1-nitro-1-cyano-3-cyclohexenes by reacting with gem-cyanonitroethenes.
• As a halogen trap during the study of the photolysis reaction of dibromo adduct of 2,5-diphenyltellurophene.
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.
Packaging: 10, 50 g in glass bottle
Symbol GHS02  GHS02
Signal word Danger
Hazard statements H225
Precautionary statements P210
Hazard Codes F
Risk Statements 11
Safety Statements 16-23
RIDADR UN 3295BE 3 / PGII
WGK Germany WGK 3
Flash Point(F) 30.2 °F - closed cup
Flash Point(C) -1 °C - closed cup
Purity 98%
bp 68-69 °C (lit.)
mp −76 °C (lit.)
Density 0.726 g/mL at 25 °C (lit.)
Refractive Index n20/D 1.438 (lit.)
Storage Temp. 2-8°C
UNSPSC 12352100

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