Method for producing imide salt

摘要

A mixture of sulphamic acid, a halogenated sulphonic acid and thionyl chloride is heated to allow the reaction to proceed, to thereby produce first intermediate products. The first intermediate products are then subjected to reaction with an alkali metal fluoride MF to produce second intermediate products. The second intermediate products is then subjected to reaction with the alkali metal fluoride MF in a polar solvent to obtain a desired product MN(SO2F)2 (where M is an alkali metal).

主权项

1. A method for producing an imide salt represented by MN(SO2F)2, where M is an alkali metal, comprising:
a first step of producing first intermediate products, which contain HN(SO2Cl)2 by heating a mixture of sulphamic acid, a halogenated sulphonic acid and thionyl chloride to allow reaction to proceed; a second step of producing second intermediate products, which contain KN(SO2F)(SO2Cl), by adding, in the absence of solvent, an alkali metal fluoride MF to the first intermediate products from which unreacted thionyl chloride has been removed to allow reaction to proceed; and a third step of producing the imide salt by subjecting the second intermediate products to reaction with the alkali metal fluoride MF in a polar solvent.