Functionalization of iodopolyfluoroalkanes by electrochemical re

Details Functionalization of iodopolyfluoroalkanes by electrochemical re Functionalization of iodopolyfluoroalkanes by electrochemical re

1989-03-10

1991-06-11

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfinic or sulfenic acids or salts thereof

260400, C07C30300

Patent

active

050233700

ABSTRACT:
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 R.sub.F COOH or perfluoroalkanesulphinic acids, R.sub.F SO.sub.2 H and alcohols of the R.sub.F C.sub.2 H.sub.4 OH type, also makes it possible to prepare new fluorinated compounds of formulae: I--(CH.sub.2).sub.p-1 --COOH and HO.sub.2 S--(CF.sub.2).sub.p-1 --COOH, in which p is an even-numbered integer which may range from 4 to 12.

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