Thiophene, 2,2'-(1,2-ethynediyl)bis-

Base Information

• Chemical Name: Thiophene, 2,2'-(1,2-ethynediyl)bis-
• CAS No.: 23975-15-7
• Molecular Formula: C10H6S2
• Molecular Weight: 190.29
• Hs Code.: 2934999090
• Mol file: 23975-15-7.mol

Synonyms:1,4-di(2-thienyl)-1,3-butadiyne;2-(2-thiophen-2-yl-ethynyl)-thiophene;2,2'-ethynedyl-bis-thiophene;thiophene,2,2'-(1,2-ethynediyl)bis;1,2-di(thiophen-2-yl)-ethyne;2-(2-thienylethynyl)thiophene;1,2-di(thiophene-2-yl)ethyne;2,2'-ethyne-1,2-diyldithiophene;2,2'-(ethyne-1,2-diyl)bisthiophene;

Chemical Property of Thiophene, 2,2'-(1,2-ethynediyl)bis-

Chemical Property:

• Melting Point: 105-106℃
• Boiling Point: 318.4±17.0 °C(Predicted)
• PSA: 56.48000
• Density: 1.29±0.1 g/cm3(Predicted)
• LogP: 3.20940

Purity/Quality:

97% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Thiophene, 2,2'-(1,2-ethynediyl)bis-

There total 3 articles about Thiophene, 2,2'-(1,2-ethynediyl)bis- which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 96.0%

→ 1,2-di(thiophen-2-yl)ethyne (23975-15-7) + dimethylacetylene (503-17-3)

Guidance literature:

With Mo(≡N)(OSiPh₃)₃(phen); manganese(ll) chloride; In toluene; at 80 ℃; for 3.5h; Reagent/catalyst; Schlenk technique; Inert atmosphere; Molecular sieve;

Reference yield: 74.0%

2-prop-1-ynyl-thiophene (23229-66-5) → 1,2-di(thiophen-2-yl)ethyne (23975-15-7) + dimethylacetylene (503-17-3)

Guidance literature:

With tris[N-(tert-butyl)(3,5-dimethylphenyl)amido]molybdenum(VI) propylidyne; tris(2-hydroxy-5-nitro-benzyl)amine; In tetrachloromethane; at 40 ℃; for 4h; Inert atmosphere;

DOI:10.1002/anie.201007559

Reference yield: 41.0%

thiophene-2-carbonitrile (1003-31-2) + hex-3-yne (928-49-4) → 1,2-di(thiophen-2-yl)ethyne (23975-15-7) + 2-(but-1-ynyl)thiophene (652974-09-9)

Guidance literature:

With NW(OC(CF₃)2Me)3(DME); In toluene; at 95 ℃; for 11h; Inert atmosphere;

DOI:10.1021/ja800020w

upstream raw materials:

2-prop-1-ynyl-thiophene

thiophene-2-carbonitrile

hex-3-yne

Downstream raw materials:

[Ni(N₄C₂₀H₈(C(CSCHCHCH))2(C₆H₃(C(CH₃)3)2)2)]

8-(N-phenylamino)-3,4-bis(2-thienyl)isocoumarin

4-(1,2-bis(2-thienyl)ethenyl)-9H-carbazole

1-phenyl-3,4-di(thiophen-2-yl)isoquinoline

Refernces

• 1、 Jyothish, Kuthanapillil,Zhang, Wei. "Introducing a podand motif to alkyne metathesis catalyst design: A highly active multidentate molybdenum(VI) catalyst that resists alkyne polymerization". supporting information; experimental part. p. 3435 - 3438. Retrieved 2011/05/04.
• 2、 Geyer, Andrea M.,Gdula, Robyn L.,Wiedner, Eric S.,Johnson, Marc J. A.. "Catalytic nitrile-alkyne cross-metathesis". . p. 3800 - 3801. Retrieved 2008/02/03.