Thieno[3,4-b]thiophene

Base Information

• Chemical Name: Thieno[3,4-b]thiophene
• CAS No.: 250-65-7
• Molecular Formula: C6H4S2
• Molecular Weight: 140.22600
• Hs Code.: 2934999090
• Mol file: 250-65-7.mol

Synonyms:1,5-Thiophthene;thiopheno[3,2-c]thiophene;thieno[3,4-b]thiophene;

Chemical Property of Thieno[3,4-b]thiophene

Chemical Property:

• PSA: 56.48000
• LogP: 2.96280

Purity/Quality:

97% ^*data from raw suppliers

Thieno[3,4-b]thiophene 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Thieno[3,4-b]thiophene

There total 9 articles about Thieno[3,4-b]thiophene 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: 62.0%

4,6-Dihydrothieno<3,4-b>thiophene (7712-08-5) → thieno[3,4-b]thiophene (250-65-7)

Guidance literature:

With 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane; at 0 ℃; for 0.5h;

DOI:10.1016/j.tetlet.2010.02.036

Reference yield: 50.0%

2,3-dihydro-thieno[3,4-b]thiophene (1262420-60-9) + 2,3-dicyano-5,6-dichloro-p-benzoquinone (84-58-2) → thieno[3,4-b]thiophene (250-65-7)

Guidance literature:

In dichloromethane;

Reference yield:

3-bromo-4-(trimethylsilyl)eth-1-yn-1-yl-thiophene (131390-83-5) → thieno[3,4-b]thiophene (250-65-7)

Guidance literature:

Yield given. Multistep reaction;

upstream raw materials:

3-bromo-4-(trimethylsilyl)eth-1-yn-1-yl-thiophene

trimethyl-(thieno[3,4-b]thiophen-2-yl)silane

[(Z)-1-Bromo-2-(4-bromo-thiophen-3-yl)-vinyl]-trimethyl-silane

2,3-dihydro-thieno[3,4-b]thiophene