Reativo útil para a sintese de derivados orgânicos oxissulfurados e fluorados e processo de síntese de um sal de um composto orgânico ao mesmo tempo fluorado e oxissulfurado

摘要

Reagent useful for the synthesis of oxosulphated and fluorinated organic derivs. by reaction with a sulphur oxide, esp. sulphur dioxide, comprises (a) a fluorocarboxylic acid of formula Ea-CF2-COOH (I) (Ea = electron withdrawing atom or group), in the form of a (partial) salt formed with an organic or mineral cation; and (b) a polar aprotic solvent. The mobile proton content of its components, including impurities, is at most equal to half the concn. of (I). Also claimed is the synthesis of only one fluorinated and oxysulphated organic cpd. comprising (a) reacting the above reagent with a sulphur oxide; and (b) heating the resulting mixt. at 100-200 degrees C. for 0.5-10 hrs..