TRANS-1,2-DI(2-THIENYL)ETHYLENE

Base Information

• Chemical Name: TRANS-1,2-DI(2-THIENYL)ETHYLENE
• CAS No.: 13640-78-3
• Molecular Formula: C10H8 S2
• Molecular Weight: 192.306
• Hs Code.: 2934999090
• Mol file: 13640-78-3.mol

Synonyms:Thiophene,2,2'-(1,2-ethenediyl)bis-, (E)-; Thiophene, 2,2'-vinylenedi-, (E)- (8CI);(E)-1,2-Di-2-thienylethylene; 2,2'-(1E)-1,2-Ethenediylbis[thiophene];trans-1,2-Bis(2-thienyl)ethene; trans-1,2-Bis(2-thienyl)ethylene;trans-1,2-Di(2-thienyl)ethylene; trans-1,2-Di-2-thienylethene

Chemical Property of TRANS-1,2-DI(2-THIENYL)ETHYLENE

Chemical Property:

• Vapor Pressure: 0.00178mmHg at 25°C
• Melting Point: 133 °C
• Boiling Point: 302.4°C at 760 mmHg
• Flash Point: 100.5°C
• PSA: 50.60000
• Density: 1.268g/cm³
• LogP: 3.33380

Purity/Quality:

99% ^*data from raw suppliers

Trans-1,2-Di(2-Thienyl)Ethylene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of TRANS-1,2-DI(2-THIENYL)ETHYLENE

There total 19 articles about TRANS-1,2-DI(2-THIENYL)ETHYLENE 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: 98.0%

thiophene-2-carbaldehyde (98-03-3) → (E)-1,2-bis(2-thienyl)ethene (13640-78-3)

Guidance literature:

With titanium tetrachloride; zinc; In tetrahydrofuran; for 3.5h; Heating;

DOI:10.1002/hc.10126

Reference yield: 92.0%

2-bromothiophene (1003-09-4) + tetramethyldivinyldisiloxane (2627-95-4) → 1,2-di-[2]thienyl-ethylene (13640-78-3,15332-30-6,18266-94-9,34512-02-2,109958-97-6)

Guidance literature:

With tetrabutylammomium bromide; potassium acetate; palladium diacetate; tris-(o-tolyl)phosphine; In water; N,N-dimethyl-formamide; at 100 ℃; for 48h; Inert atmosphere;

Reference yield: 88.0%

thiophene-2-carbaldehyde (98-03-3) + diethyl thien-2-ylmethylphosphonate (2026-42-8) → 1,2-di-[2]thienyl-ethylene (13640-78-3,15332-30-6,18266-94-9,34512-02-2,109958-97-6)

Guidance literature:

With sodium hydride; In 1,2-dimethoxyethane; mineral oil; at 0 - 20 ℃; Inert atmosphere; Darkness;

DOI:10.1039/c0ob00482k

upstream raw materials:

2-(diazomethyl)thiophene

2-thiophenecarbaldehyde tosylhydrazone

thiophene-2-carbaldehyde

diethyl thien-2-ylmethylphosphonate

Downstream raw materials:

1,2-bis(thiophen-2-yl)ethane

Triphenyl-(5-{(E)-2-[5-((E)-2-thiophen-2-yl-vinyl)-thiophen-2-yl]-vinyl}-thiophen-2-ylmethyl)-phosphonium; bromide

(E)-1-[2-(E)-(4-N,N-dimethylaminobenzylidenemethyl)-5-thienyl]-2-(2-thienyl)ethene

(E)-1-[2-(E)-(4-N,N-dimethylaminobenzylidenemethyl)-5-thienyl]-2-(2-formyl-5-thienyl)ethene

Refernces

• 1、 Asawapirom,Güntner,Forster,Farrell,Scherf. "Dialkylfluorene-oligothiophene and dialkylfluorene-dithienylvinylene alternating copolymers". . p. 1136 - 1142. Retrieved 2002.
• 2、 Mahesh,Karpagam,Putnin, Thitirat,Le, Huong,Bui, Thanh-Tuan,Ounnunkad, Kontad,Goubard, Fabrice. "Role of cyano substituents on thiophene vinylene benzothiadiazole conjugated polymers and application as hole transporting materials in perovskite solar cells". . p. 238 - 247. Retrieved 2019.
• 3、 -. "Synthesis method of diarylethene". Paragraph 0049-0051. . Retrieved 2020/09/09.