Process for preparing fluorine-containing compounds, in...

C - Chemistry – Metallurgy – 07 – B

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Details

C07B 39/00 (2006.01) C07C 45/63 (2006.01) C07C 253/30 (2006.01)

Patent

CA 2302418

The invention concerns a method for producing compounds containing fluorine characterised in that it consists in reacting a compound containing one or several halogen atoms capable of being replaced by fluorine with a fluoride corresponding to general formula (I) KAT+F-, in which KAT+ represents an alkaline metal ion, NH4+, an alkaline-earth metal ion or a residue corresponding to general formula (II) A1A2A3A4N+, in which A1, A2, A3, A4 correspond to the definition given in the description, in the presence of a compound or a mixture of compounds corresponding to general formula (III), in which A5, A6, A7, A8, A9, A10, A11, A12 correspond to the definition given in the description and B represents a monovalent acid residue or the equivalent of a polyvalent acid residue, and in the presence of one or several compounds corresponding to general formula IVa: X-NO2 and/or IVb: X-SO-X', where X and X', independently of each other identical or different correspond to the definition given in the description, in the presence or not of a solvent, at temperatures ranging between 40 ~C and 260 ~C.

L'invention concerne un procédé de production de composés contenant du fluor qui se caractérise en ce que l'on fait réagir un composé, qui contient un ou plusieurs atomes d'halogène pouvant être remplacés par fluor avec un fluorure correspondant à la formule générale (I) KAT?+¿F¿-?, où KAT?+¿ représente un ion métal alcalin, NH¿4??+¿, un ion métal alcalinoterreux ou un reste correspondant à la formule générale (II) A?1¿ A?2¿ A?3¿ A?4¿ N?+¿, où A?1¿, A?2¿, A?3¿, A?4¿ correspondent à la définition donnée dans la description, en présence d'un composé ou d'un mélange de composés correspondant à la formule générale (III), dans laquelle A?5¿, A?6¿, A?7¿, A?8¿, A?9¿, A?10¿, A?11¿, A?12¿ correspondent à la définition donnée dans la description et B représente un reste acide monovalent ou l'équivalent d'un reste acide polyvalent, et en présence d'un ou de plusieurs composés correspondant à la formule générale IVa X-NO¿2? et/ou IVb X-SO-X', où X et X' peuvent être indépendamment l'un de l'autre, identiques ou différents et correspondent à la définition donnée dans la description, en présence ou en l'absence d'un solvant, à des températures comprises dans la plage 40 ·C-260 ·C.

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