![](/CAS/20200611/GIF/34642-42-7.gif)
Methanesulfinic acid, 1,1,1-trifluoro- synthesis
- Product Name:Methanesulfinic acid, 1,1,1-trifluoro-
- CAS Number:34642-42-7
- Molecular formula:CHF3O2S
- Molecular Weight:134.08
![potassium trifluoromethanesulfonate](/CAS/GIF/41804-89-1.gif)
41804-89-1
28 suppliers
$110.00/1g
![Methanesulfinic acid, 1,1,1-trifluoro-](/CAS/20200611/GIF/34642-42-7.gif)
34642-42-7
1 suppliers
inquiry
Yield:-
Reaction Conditions:
with sulfuric acid in ethylbenzene at 20 - 30;Product distribution / selectivity;
Steps:
1
EXAMPLE 1 Azeotropic Distillation of Trifluoromethanesulfinic Acid with Ethylbenzene In a 750 ml reactor with stirrer and distillation attachment, 92.7 g of potassium trifluoromethanesulfinate (0.50 mol, 92.5%) were suspended in 142 g of ethylbenzene. Subsequently, 75.0 g of concentrated sulfuric acid (0.75 mol, 98%) were added dropwise at from 20 to 30° C. with cooling within 15 min. The trifluoromethanesulfinic acid released thereby was azeotropically distilled off under a reduced pressure of 40 mbar at a condensate temperature of 46° C. within 5 h. The 69.4 g of lower phase of the distillate cooled to 5° C. consisted of trifluoromethanesulfinic acid and small amounts of ethylbenzene. The upper phase, which consisted predominantly of ethylbenzene, ran back into the reactor continuously during the distillation. The trifluoromethanesulfinic acid thus obtained (95% yield, 92% purity) can be used in subsequent reactions without further workup.
References:
BASF SE US2011/190510, 2011, A1 Location in patent:Page/Page column 3
![Trifluoromethanesulfonyl chloride](/CAS/GIF/421-83-0.gif)
421-83-0
231 suppliers
$22.39/1G
![Methanesulfinic acid, 1,1,1-trifluoro-](/CAS/20200611/GIF/34642-42-7.gif)
34642-42-7
1 suppliers
inquiry
![Trifluoromethanesulfonic acid](/CAS/20180808/GIF/1493-13-6.gif)
1493-13-6
608 suppliers
$12.00/5g
![Trifluoromethanesulfonimide](/CAS/GIF/82113-65-3.gif)
82113-65-3
245 suppliers
$25.00/1 g
![Trifluoromethanesulfonyl chloride](/CAS/GIF/421-83-0.gif)
421-83-0
231 suppliers
$22.39/1G
![Methanesulfinic acid, 1,1,1-trifluoro-](/CAS/20200611/GIF/34642-42-7.gif)
34642-42-7
1 suppliers
inquiry
![Potassium trifluoroacetate](/CAS/GIF/2923-16-2.gif)
2923-16-2
235 suppliers
$5.00/1g
![potassium trifluoromethanesulfonate](/CAS/GIF/41804-89-1.gif)
41804-89-1
28 suppliers
$110.00/1g
![Methanesulfinic acid, 1,1,1-trifluoro-](/CAS/20200611/GIF/34642-42-7.gif)
34642-42-7
1 suppliers
inquiry
![Trifluoroacetic acid](/CAS/GIF/76-05-1.gif)
76-05-1
678 suppliers
$9.00/1g
![TRIFLUOROMETHANESULFONYL FLUORIDE](/CAS/GIF/335-05-7.gif)
335-05-7
44 suppliers
inquiry
![Methanesulfinic acid, 1,1,1-trifluoro-](/CAS/20200611/GIF/34642-42-7.gif)
34642-42-7
1 suppliers
inquiry
![Trifluoromethanesulfonic acid](/CAS/20180808/GIF/1493-13-6.gif)
1493-13-6
608 suppliers
$12.00/5g
![Trifluoromethanesulfonimide](/CAS/GIF/82113-65-3.gif)
82113-65-3
245 suppliers
$25.00/1 g