3-Ethynylthiophene Chemical Properties

Boiling point:

152-153 °C (lit.)

Density 

1.098 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.5800(lit.)

Flash point:

115 °F

storage temp. 

Keep in dark place,Inert atmosphere,2-8°C

form 

Liquid

color 

Colorless to yellow to orange

Water Solubility 

Slightly soluble in water.

Safety Information

Hazard Codes 

Xi

Risk Statements 

10-37/38-41

Safety Statements 

16-26-39

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

HazardClass 

3

PackingGroup 

III

HS Code 

29349990

3-Ethynylthiophene Usage And Synthesis

Uses

3-Ethynylthiophene is used in preparation of benzothiazonines by rhodium-catalyzed denitrogenative annulation reactions of sulfonylaryltriazoles with thiochromones.

Uses

3-Ethynylthiophene may be used in the synthesis of the following:

• 1-(2-bromobenzyl)-4-(thiophen-3-yl)-1H-1,2,3-triazole which is obtained by heating with 2-iodophenylethylazide in the presence of copper acetate monohydrate catalyst in N-methyl-2-pyrrolidone
• N-benzyl-1-phenyl-5-(thiophen-3-yl)-4-pentyn-2-amine via a multi-step reaction process
• [(C₄H₃S-3)C≡CAg]_n, a polymeric compound obtained via reaction with silver nitrate in the presence of triethylamine in acetonitrile
• 4,5-bis(thiophen-3-ylethynyl)phthalonitrile via Sonogashira cross-coupling reaction with 4,5-dichlorophthalonitrile

3-Ethynylthiophene(67237-53-0)Related Product Information

• Trimethylsilylacetylene
• Thifensulfuron
• Cephalothin sodium
• Tetrahydrothiophene
• 3-(TRIMETHYLSILYLETHYNYL)THIOPHENE 97
• 2-Ethynylthiophene
• 2-((TRIMETHYLSILYL)ETHYNYL)THIOPHENE 9&
• CHEMBRDG-BB 4015491
• 4-(2-PHENYLETH-1-YNYL)THIOPHENE-2-CARBALDEHYDE
• 3-Ethynylthiophene
• 2-(Buta-1,3-diynyl)-5-(but-en-1-ynyl)thiophene
• RARECHEM AL BM 0410
• RARECHEM AL BE 0410
• RARECHEM AL BL 0399
• RARECHEM AN KA 0546
• RARECHEM AL BP 0410
• RARECHEM AN KB 0547
• RARECHEM AN KD 0546