potassium trifluoromethanesulfonate synthesis

Yield:41804-89-1 94%

Reaction Conditions:

with potassium sulfite in methanol;water;

Steps:

6 EXAMPLE 6

EXAMPLE 6 At first, an aqueous solution was prepared by dissolving 125 g of potassium sulfite in 290 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, 30.7 g of trifluoromethanesulfonic fluoride were added to the reactor, followed by stirring at a temperature of from 0° C. to room temperature for 12 hr. The resulting reaction liquid was neutralized with potassium 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 32.6 g of potassium trifluoromethanesulfinate (yield: 94%).

References:

US2001/31891,2001,A1