difluoromethanethione

Base Information

• Chemical Name: difluoromethanethione
• CAS No.: 420-32-6
• Molecular Formula: CF2 S
• Molecular Weight: 82.0738
• Hs Code.: 2930909090
• Mol file: 420-32-6.mol

Synonyms:Thiocarbonylfluoride (6CI,7CI,8CI); Carbon difluoride sulfide; Carbon fluoride sulfide(CF2S); Difluorothiocarbonyl; Thiocarbonic difluoride; Thiocarbonyl difluoride

Chemical Property of difluoromethanethione

Chemical Property:

• Vapor Pressure: 1250mmHg at 25°C
• Boiling Point: 10.9°Cat760mmHg
• Flash Point: °C
• PSA: 32.09000
• Density: 1.347g/cm³
• LogP: 1.21030

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of difluoromethanethione

There total 37 articles about difluoromethanethione 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: 76.0%

O,O-diethyl-S-trifluoromethyl phosphorothioate (79378-29-3) → thiocarbonyl fluoride (420-32-6) + diethyl fluorophosphate (358-74-7) + Bis(trifluoromethyl)disulfid (372-64-5)

Guidance literature:

With triethylamine; In dichloromethane; at 10 ℃; for 0.166667h;

Reference yield:

chlorodifluoromethylsulfanylphosphoryl dichloride (77013-63-9) → trifluorophosphoric acid (13478-20-1) + thiocarbonyl fluoride (420-32-6) + trichlorophosphate (10025-87-3,12599-09-6,63736-95-8,39380-77-3)

Guidance literature:

thermolysis;

Reference yield:

trifluoro methyl silyl sulfide (753-94-6) + silver(I) chloride → fluorosilane (11128-24-8,13537-33-2) + thiocarbonyl fluoride (420-32-6) + bis(trifluoromethyl)trithiocarbonate (461-08-5) + chlorosilane (13966-57-9,13465-78-6) + silver(I) trifluoromethanethiolate (811-68-7)

Guidance literature:

at room temp.;

upstream raw materials:

Bis(trifluoromethyl)disulfid

O,O-dimethyl-S-trifluoromethyl phosphorthioate

O,O-diethyl-S-trifluoromethyl phosphorothioate

trans-4-methyl-2-(trifluoromethylthio)-1,3,2-dioxaphosphinane 2-oxide

Downstream raw materials:

1,1-difluoro-2,2-diphenylethylene

Bis(trifluoromethyl)disulfid

Trifluoromethylsulfenyl chloride

carbon oxide sulfide

Refernces

• 1、 Critchley, Andrew D.J.,Howle, Chris R.,Mayhew, Chris A.,Tuckett, Richard P.. "A selected ion flow tube study of the reactions of gas-phase cations with PSCl3". . p. 235 - 241. Retrieved 2008/10/09.
• 2、 Munavalli, Shekar,Rossman, David I.,Rohrbaugh, Dennis K.,Ferguson, C. Parker,Szafraniec, Leonard J.. "Simultaneous scission of C-S and S-S bonds of bis(trifluoromethyl)trisulfide by Grignard reagents". . p. 91 - 99. Retrieved 2007/10/02.