Preparation of F-alkyl F-isobutyl ethers by electrochemical fluorination
AssigneeMinnesota Mining and Manufacturing Company
InventorJohn C. Hansen
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Abstract
A method for the preparation of fluoroalkyl fluoroisobutyl ethers is disclosed. Such ethers are prepared by fluorinating, in an electrochemical cell, a solution comprising an adduct of perfluoro-isobutene and an aliphatic alcohol.
Claims8
A process for the production of fluoro-alkyl fluoro-isobutyl ether product that comprises fluorinating in an electrochemical cell an electrically conductive solution comprising an adduct of perfluoro-isobutene and aliphatic alcohol in anhydrous hydrogen fluoride wherein the concentration of anhydrous hydrogen fluoride in the conductive solution is maintained between approximately 50 and 70 weight percent and the electrochemical cell is under temperature and pressure conditions sufficient to produce a major amount of 2-hydro fluorinated ether product.
A process for the production of fluoro-alkyl fluoro-isobutyl ether product that comprises fluorinating in an electrochemical cell an electrically conductive solution comprising an adduct of perfluoro-isobutene and aliphatic alcohol in anhydrous hydrogen fluoride wherein the concentration of anhydrous hydrogen fluoride in the conductive solution is maintained between approximately 75 and 99 weight percent and the electrochemical cell is under temperature and pressure conditions sufficient to produce a major amount of fully-fluorinated fluoro-alkyl fluoroisobutyl ether product and a minor amount of a 2-hydro fluorinated ether product.
Dependencies are inferred from the claim text.