ChemicalBook CAS DataBase List Sodium trifluoromethanesulfinate

Sodium trifluoromethanesulfinate synthesis

9synthesis methods

Product Name:Sodium trifluoromethanesulfinate
CAS Number:2926-29-6
Molecular formula:CH2F3NaO2S
Molecular Weight:158.07

At first, an aqueous solution was prepared by dissolving 37.5 g of sodium sulfite in 150 g of water. Then, a metal pressure-proof reactor was charged with this aqueous solution. After that, the atmosphere of the reactor was removed to obtain a reduced pressure. 10.7 g of trifluoromethanesulfonic fluoride was added to the reactor, stirring at 5° C. for 4 hr. The resulting reaction liquid was neutralized with sodium carbonate, followed by water removal. Then, methanol was added to the remaining solid matter to extract the target product. The resulting methanol solution was concentrated to dryness, thereby obtaining 9.7 g of sodium trifluoromethanesulfinate (yield: 88%).

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Yield:2926-29-6 88%

Reaction Conditions:

with sodium sulfite in methanol;water;

Steps:

5 EXAMPLE 5

EXAMPLE 5 At first, an aqueous solution was prepared by dissolving 37.5 g of sodium sulfite in 150 g of water. Then, a metal pressure-proof reactor was charged with this aqueous solution. Then, the atmosphere of the reactor was removed to obtain a reduced pressure. After that, 10.7 g of trifluoromethanesulfonic fluoride were added to the reactor, followed by stirring at 5° C. for 4 hr. The resulting reaction liquid was neutralized with sodium carbonate, followed by removal of water. Then, methanol was added to the remaining solid matter to extract the target product. The resulting methanol solution was concentrated to dryness, thereby obtaining 9.7 g of sodium trifluoromethanesulfinate (yield: 88%).

References:

US2001/31891,2001,A1