2,5-Dibromothiophene Chemical Properties

Melting point:

-6 °C (lit.)

Boiling point:

211 °C (lit.)

Density 

2.147 g/mL at 25 °C (lit.)

refractive index 

1.627-1.63

Flash point:

99 °C

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

Chloroform, Methanol

form 

Liquid

color 

Clear pale yellow to brown

Specific Gravity

2.147

Water Solubility 

practically insoluble

BRN 

109899

InChIKey

KBVDUUXRXJTAJC-UHFFFAOYSA-N

CAS DataBase Reference

3141-27-3(CAS DataBase Reference)

NIST Chemistry Reference

Thiophene, 2,5-dibromo-(3141-27-3)

EPA Substance Registry System

Thiophene, 2,5-dibromo- (3141-27-3)

Safety Information

Hazard Codes 

T+,Xi

Risk Statements 

68-43-36/37/38-28-20/21

Safety Statements 

45-36/37/39-28A-26-36

RIDADR 

UN2810

WGK Germany 

3

Hazard Note 

Irritant

TSCA 

T

HazardClass 

6.1

PackingGroup 

II

HS Code 

29349990

MSDS

• Language:English Provider:2,5-Dibromothiophene
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2,5-Dibromothiophene Usage And Synthesis

Chemical Properties

Light Yellow Liquid

Uses

2,5-Dibromothiophene, is mainly used as pharmaceutical intermediate and synthesis intermediate.

Uses

2,5-Dibromothiophene was used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes. It was used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 58, p. 3072, 1993 DOI: 10.1021/jo00063a028
Synthesis, p. 890, 1988 DOI: 10.1055/s-1988-27740

General Description

2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .

References

[1] Tetrahedron Letters, 2010, vol. 51, # 1, p. 205 - 208
[2] Journal of Organic Chemistry, 1993, vol. 58, # 11, p. 3072 - 3075
[3] Synthesis, 1988, # 11, p. 890 - 891
[4] Journal of Organic Chemistry, 2018, vol. 83, # 2, p. 930 - 938
[5] Patent: KR2018/17709, 2018, A. Location in patent: Paragraph 0173; 0176-0179

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