# US 4,394,225 A · Process for the addition of iodoperfluoroalkanes onto ethylenic or acetylenic compounds by electrocatalysis

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- Number: US 4,394,225 A
- Document ID: US4394225A
- Status: Granted
- Kind: A
- Application number: 06/278,609
- Filed: 1981-06-29
- Granted: 1983-07-19
- Earliest claimed: 1980-07-08
- Assignees: Produits Chimiques Ugine Kuhlmann
- Inventors: Auguste Commeyras; Patrick Calas
- Web page: https://patentgrep.com/patent/US4394225A

## CPC

- C25B 3/00: Electrolytic production of organic compounds
- C25B 3/11: Halogen containing compounds
- C25B 3/07: Oxygen containing compounds
- C25B: ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR (anodic or cathodic protection C23F13/00; single-crystal growth C30B)

## Abstract

The process for the addition of iodoperfluoroalkanes of the formula CF.sub.3 (CF.sub.2).sub.n I, in which n is an integer from 1 to 19, onto ethylenic or acetylenic compounds, by electrocatalysis of the mixture of reactants.

## Claims

### Claim 1

A process for the addition of an iodoperfluoroalkane of the formula CF.sub.3 (CF.sub.2).sub.n I, in which n is an integer from 1 to 19, onto an ethylenic or acetylenic alcohol or ether having the unsaturation between the second and third carbon atoms, comprising forming a mixture of said alkane and said alcohol or ether and subjecting said mixture to electrocatalysis in an electrolytic cell.

### Claim 2 (depends on 1)

The process according to claim 1 in which the mixture of reactants is an organic solvent medium or an aqueous emulsion.

### Claim 3 (depends on 1)

The process of claim 1 in which the cathode of the electrolytic cell is selected from a carbon fiber or mercury cathode.

### Claim 4 (depends on 1, 2)

The process of claim 1, 2, or 3 in which the compound is an alcohol or an ether.

### Claim 5 (depends on 1, 2)

The process of claim 1, 2, or 3 in which the compound is allyl alcohol and the product formed by electrocatalysis is a polyfluorinated halohydrin R.sub.F CH.sub.2 --CHI--CH.sub.2 OH.

### Claim 6 (depends on 1, 2)

The process of claim 1, 2, or 3 in which the compound is allyl alcohol and in which the electrocatalysis is followed by an electrolysis resulting in the epoxide ##STR11##