EP 0245133 B1 19891011 - FUNCTIONALIZATION OF IODO-POLYFLUOROALCANES BY ELECTROCHEMICAL REDUCTION, AND FLUORINATED COMPOUNDS SO OBTAINED
Title (en)
FUNCTIONALIZATION OF IODO-POLYFLUOROALCANES BY ELECTROCHEMICAL REDUCTION, AND FLUORINATED COMPOUNDS SO OBTAINED
Publication
Application
Priority
FR 8605519 A 19860417
Abstract (en)
[origin: ES2005153A6] The invention relates to the preparation of functionalized derivatives from iodopolyfluoroalkanes by electrochemical reduction. This reduction is carried out in a formamide or substituted formamide solvent which may contain up to 70% (by volume) water, on a carbon cathode for certain embodiments sulfur dioxide may also be present. This method of preparing perfluoroalkanecarboxylic acids RFCOOH or perfluoroalkanesulphinic acids, RFSO2H and alcohols of the RFC2H4OH type, also makes it possible to prepare new fluorinated compounds of formulae: I-(CF2)p-1-COOH and HO2S-(CF2)p-1-COOH, in which p is an even-numbered integer which may range from 4 to 12.
IPC 1-7
IPC 8 full level
C07C 53/21 (2006.01); C07C 67/00 (2006.01); C07C 301/00 (2006.01); C07C 309/17 (2006.01); C25B 3/25 (2021.01)
CPC (source: EP US)
C25B 3/25 (2021.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0245133 A1 19871111; EP 0245133 B1 19891011; AT 394214 B 19920225; AT A94987 A 19910815; AU 587120 B2 19890803; AU 7174787 A 19871022; CA 1299191 C 19920421; DE 3760742 D1 19891116; DK 195187 A 19871018; DK 195187 D0 19870415; ES 2005153 A6 19890301; FI 84918 B 19911031; FI 84918 C 19920210; FI 871680 A0 19870415; FI 871680 A 19871018; FR 2597511 A1 19871023; FR 2597511 B1 19900907; GR 870612 B 19870812; IL 82011 A 19901129; JP H0254436 B2 19901121; JP S62250191 A 19871031; NO 169085 B 19920127; NO 169085 C 19920506; NO 871494 D0 19870409; NO 871494 L 19871019; PT 84706 A 19870501; PT 84706 B 19891130; TR 22854 A 19880913; US 4830715 A 19890516; US 5023370 A 19910611; ZA 872754 B 19871005
DOCDB simple family (application)
EP 87400768 A 19870407; AT 94987 A 19870415; AU 7174787 A 19870416; CA 532880 A 19870324; DE 3760742 T 19870407; DK 195187 A 19870415; ES 8701066 A 19870413; FI 871680 A 19870415; FR 8605519 A 19860417; GR 870100612 A 19870415; IL 8201187 A 19870325; JP 9215087 A 19870416; NO 871494 A 19870409; PT 8470687 A 19870416; TR 25987 A 19870416; US 32227189 A 19890310; US 3818887 A 19870414; ZA 872754 A 19870416