Process for the synthesis of fluoroorganic compounds
AssigneeSolvay (Societe Anonyme)
InventorsVeronique Mathieu, Francine Janssens, James Franklin
Life of this patent
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Abstract
The present invention relates to a fluorination method for the synthesis of halofluoroorganic compounds which can be used, inter alia, as precursors in the synthesis of 2,3-unsaturated fluoroorganic carbonyl compounds comprising a fluorine substituent in the 2 position.
Claims15
Fluorination method for the synthesis of a halofluoroorganic compound of general formula HR′R″C—CXF—(C═O)—Y (I) in which X denotes a halogen atom and Y, R′ and R″ denote substituents, according to which fluorination method hydrogen fluoride is reacted with an organic compound which corresponds to a general formula chosen from R′R″C═CX—(C═O)—Y (H) and R′R″HC—CX1X2-(C═O)—Y (III) in which X1 and X2 denote halogen atoms.
Process for the synthesis of a fluoroorganic compound of general formula R′R″C═CF—(C═O)—Y (IV) comprising a stage (a) in which a precursor comprising a halofluoroorganic compound of general formula HR′R″C—CXF—(C═O)—Y (I), in which X denotes a halogen atom and Y, R′ and R″ denotes substituents, is subjected to a dehydrohalogenation reaction.
Organic product composed essentially of a halofluoroorganic compound of general formula HR′R″C—CXF—(C═O)—Y (I) in which X denotes a halogen atom and Y, R′ and R″ denote substituents.
Ester of 2-halo-2-fluorocarboxylic acid.
2-Chloro-2-fluoropropionic acid.
Dependencies are inferred from the claim text.