2,3-Dimethoxy-1,3-butadiene Property

Melting point:

19 °C (lit.)

Boiling point:

134-136 °C/745 mmHg (lit.)

Density 

0.94 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.459(lit.)

Flash point:

91 °F

storage temp. 

2-8°C

Safety

Risk Statements 

10

Safety Statements 

16-33

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

HazardClass 

3.2

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

2,3-Dimethoxy-1,3-butadiene Chemical Properties,Usage,Production

Uses

2,3-Dimethoxy-1,3-butadiene has been employed as diene to investigate the Diels-Alder chemistry of pristine and defective graphene. It was also used in the synthesis of novel benzopentathiepin varacinium trifluoroacetate.
It may be used in the preparation of 3,4-dimethoxythiophene, an intermediate for the synthesis of 3,4-ethylenedioxythiophene (EDOT). It may also be used to form thio esters by reacting with mercaptans in the presence of cobalt carbonyl catalyst.

General Description

2,3-Dimethoxy-1,3-butadiene (DMEBD) is a 1,3-butadiene derivative. The reaction kinetics of hydrolysis of 2,3-dimethoxy-1,3-butadiene in the presence of acid catalyst has been investigated. The [4+2] cycloadditions of 3-nitrocoumarins with DMEBD has been investigated in aqueous medium, in organic solvent and under solventless conditions. This reaction led to the formation of 4-substituted 3-nitrochromanones. It forms adducts with graphene and Diels-Alder chemistry in this formation has been investigated.