Patent ID: 6462228
Filing Date: 2002-10-08
Classification: C07C,C08F

Abstract:
A process for preparing a fluorinated sulfinate product comprising the steps of:a) providing a reaction mixture comprising: (1) water; (2) dehalogenating and sulfinating reagent; (3) fluoroaliphatic sulfonyl fluoride represented by the formula: Rfâ€”[SO2F]n â€ƒwherein: Rf is a fluoroaliphatic group, and n is a number from about 1 to 4; and (4) at least one material selected from the group consisting of: (i) fluorinated surfactant, and (ii) organic cosolvent comprising, as the major component by weight, alcohol having a boiling point of less than 110Â° C. at 760 torr; and b) heating the reaction mixture to a temperature between 50Â° C. and 100Â° C. until the desired product yield is achieved.