the synthesis process of a fluorochemical compound of the formula (so2n (chr2chr2coo - r1n + (r) 2, in which rf is a fluoroaliphatique radical containing 3 to 20 carbon atoms. the synthesis involves the reaction of compounds of formula rfso2n (h) r1n (r) 2 and chr2 = cr2cooh in solution at elevated temperatures.the method can be used in the synthesis of amphoteric carboxylate surfactant of amino fluoroaliphatique having the formula (c2h4coo c6f13so2n) c3h6n + (ch3) 2, the compound is useful in binding to a concentrate for extinguishing fires caused by liquid are flammable.
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