2-(1,3-dithiolan-2-ylidene)-1,3-dithiolane

Base Information

• Chemical Name: 2-(1,3-dithiolan-2-ylidene)-1,3-dithiolane
• CAS No.: 24719-68-4
• Molecular Formula: C₆H₈S₄
• Molecular Weight: 208.394
• Mol file: 24719-68-4.mol

Synonyms:1,3-Dithiolane,2-(1,3-dithiolan-2-ylidene)- (9CI); D2,2'-Bi-1,3-dithiolane (8CI);Tetrahydrotetrathiofulvalene; Tetrathioethylene

Chemical Property of 2-(1,3-dithiolan-2-ylidene)-1,3-dithiolane

Chemical Property:

• Vapor Pressure: 0.000715mmHg at 25°C
• Boiling Point: 317.5°Cat760mmHg
• Flash Point: 230.6°C
• Density: 1.507g/cm³

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-(1,3-dithiolan-2-ylidene)-1,3-dithiolane

There total 7 articles about 2-(1,3-dithiolan-2-ylidene)-1,3-dithiolane 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: 92.0%

4,5-Bis-(2-chloro-ethylsulfanyl)-[1,3]dithiole-2-thione (138682-23-2) → <2,2'>-Bis-<1,3>dithiolanyliden (24719-68-4)

Guidance literature:

With sodium ethanolate; In ethanol; at 20 ℃; for 10h;

DOI:10.1039/P19930001403

Reference yield: 38.0%

4,5-Bis<(2'-bromoethyl)thio>-1,3-dithiole-2-thione (146581-69-3) → <2,2'>-Bis-<1,3>dithiolanyliden (24719-68-4)

Guidance literature:

With N,N`-dimethylethylenediamine; In xylene; for 24h;

DOI:10.1021/jo00058a013

Reference yield:

4,5-bis[(2'-hydroxyethyl)thio]1,3-dithiole-2-thione (128258-71-9) → <2,2'>-Bis-<1,3>dithiolanyliden (24719-68-4)

Guidance literature:

Multi-step reaction with 2 steps

1: 83 percent / SOCl₂ / CH₂Cl₂ / 1) 0.5 h, 0 deg C, 2) 1 h, reflux

2: 92 percent / NaOEt / ethanol / 10 h / 20 °C

With thionyl chloride; sodium ethanolate; In ethanol; dichloromethane;

DOI:10.1039/P19930001403

upstream raw materials:

ethyl 1,3-dithiolane-2-carboxylate

bis(dimethylaluminium) 1,2-ethanedithiolate

4,5-Bis-(2-chloro-ethylsulfanyl)-[1,3]dithiole-2-thione

Ditetraethylammoniumtetrathiooxalat